The following table shows the aspect ratio (height to width ratio) of national flags used by countries and dependencies. Variant flags such as ensigns are listed in the "Alternative flags" column, if they have different proportions from the national flag. Territories without an official flag distinct from that of their controlling country are excluded.
The ratios used most commonly are 2:3, used by 89 of 195 sovereign states, and 1:2, used by 54 sovereign states. Most dependencies and former colonies use the same proportions as their mother countries: all British Overseas Territories use 1:2 ratios, while the flags of most former and current Dutch and French areas have 2:3 proportions.
For comparison, the ratios are also given as a decimal number, which is the flag width divided by its height (e.g. a 2:3 flag has a decimal ratio of 3/2 = 1.5). Flags with irrational ratios have only a decimal approximation, and have the exact form given in the "Notes" column.
Legend:
Click on the "Flag" header to sort by status: first sovereign states, then de facto countries, then dependencies.
Flag | Country/Dependency | Ratio | Alternative flags | Sources and notes | |
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Abkhazia | 1:2 (2) | [1] Claimed by Georgia as the Autonomous Republic of Abkhazia, whose government in exile has a more squarish unofficial flag. | ||
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Afghanistan | 2:3 (1.5) | [2] From 2001 until 2004, a 1:2 version of the flag was used. | ||
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Albania | 5:7 (1.4) | Civil, state and naval ensigns: 2:3 | [3] | |
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Algeria | 2:3 (1.5) | |||
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American Samoa (US) | 1:2 (2) | |||
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Andorra | 7:10 (1.429) | [4] | ||
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Angola | 2:3 (1.5) | |||
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Anguilla (UK) | 1:2 (2) | The 1967–1969 Republic of Anguilla's "Dolphin Flag" has a ratio of 3:5. | ||
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Antarctica | 2:3 (1.5) | |||
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Antigua and Barbuda | 2:3 (1.5) | |||
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Argentina | 5:8 (1.6) | Civil flag and ensign (without the sun): 9:14 | ||
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Armenia | 1:2 (2) | [5] | ||
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Artsakh | 1:2 (2) | |||
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Aruba (Netherlands) | 2:3 (1.5) | [6] | ||
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Australia | 1:2 (2) | [7] | ||
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Austria | 2:3 (1.5) | |||
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Azerbaijan | 1:2 (2) | [8] | ||
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Bahamas | 1:2 (2) | |||
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Bahrain | 3:5 (1.667) | |||
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Bangladesh | 3:5 (1.667) | Civil, naval and air force ensigns: 1:2 | [9] | |
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Barbados | 2:3 (1.5) | Naval ensign: 1:2 | [10] | |
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Belarus | 1:2 (2) | [11] | ||
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Belgium | 13:15 (1.154) | Civil and naval ensigns: both 2:3 | The 2:3 version (also the civil ensign) is used more commonly on land than the 13:15 official flag. | |
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Belize | 2:3 (1.5) | |||
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Benin | 2:3 (1.5) | |||
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Bermuda (UK) | 1:2 (2) | |||
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Bhutan | 2:3 (1.5) | |||
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Bolivia | 15:22 (1.467) | Naval ensign: 2:3 Qulla Suyu's banner: 1:1 |
[12] | |
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Bosnia and Herzegovina | 1:2 (2) | [13] | ||
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Botswana | 2:3 (1.5) | |||
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Brazil | 7:10 (1.429) | Naval jack: 3:4 | [14] | |
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British Antarctic Territory (UK) | 1:2 (2) | |||
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British Indian Ocean Territory (UK) | 1:2 (2) | |||
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British Virgin Islands (UK) | 1:2 (2) | |||
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Brunei | 1:2 (2) | War flag: 2:3 | [15] | |
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Bulgaria | 3:5 (1.667) | Naval ensign and jack: 2:3 War flag: 1:1 |
[16] | |
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Burkina Faso | 2:3 (1.5) | |||
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Burundi | 3:5 (1.667) | Until 1982, a 2:3 version of the flag was used. | ||
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Cambodia | 16:25 (1.563) | |||
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Cameroon | 2:3 (1.5) | |||
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Canada | 1:2 (2) | [17] | ||
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Cape Verde | 3:5 (1.667) | The Cape Verdean constitution does not specify an official aspect ratio,[18] but 2:3 proportion is most widely used. | ||
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Cayman Islands (UK) | 1:2 (2) | |||
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Central African Republic | 2:3 (1.5) | Varying sources give 2:3 and 3:5 ratios.[19] | ||
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Chad | 2:3 (1.5) | |||
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Chile | 2:3 (1.5) | [20] The original version of the flag had an aspect ratio of 1/2φ2tan(54°) ≈ 1.8017.[21] | ||
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China PR | 2:3 (1.5) | [22] | ||
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Taiwan | 2:3 (1.5) | |||
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Christmas Island (Australia) | 1:2 (2) | |||
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Cocos (Keeling) Islands (Australia) | 1:2 (2) | |||
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Colombia | 2:3 (1.5) | |||
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Comoros | 3:5 (1.667) | |||
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Dem. Rep. of the Congo | 3:4 (1.333) | All of the DRC's previous flags had 2:3 ratios. | ||
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Republic of the Congo | 2:3 (1.5) | [23] | ||
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Cook Islands (New Zealand) | 1:2 (2) | |||
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Costa Rica | 3:5 (1.667) | |||
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Croatia | 1:2 (2) | Civil and state ensign, naval ensign and naval jack: all 2:3 | [24] | |
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Cuba | 1:2 (2) | Naval jack: 2:3 | The naval jack, a white and blue bicolor with a white star in a red canton, was briefly the national flag during the Ten Years' War, from 1868 until 1878. | |
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Curaçao (Netherlands) | 2:3 (1.5) | |||
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Cyprus | 2:3 (1.5) | [25] Until 2006, a slightly different design was used, which had an aspect ratio of 3:5. | ||
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Czech Republic | 2:3 (1.5) | [26] | ||
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Denmark | 28:37 (1.321) | State flag and ensign: 56:107; naval ensign: 7:17 (both swallowtails) | ||
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Djibouti | 2:3 (1.5) | |||
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Dominica | 1:2 (2) | |||
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Dominican Republic | 5:8 (1.6) | [27] | ||
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Ecuador | 2:3 (1.5) | |||
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Egypt | 2:3 (1.5) | |||
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El Salvador | 189:335 (1.772) | Civil flag (a plain tricolor): 3:5[citation needed] Alternative state flag (with the text "Dios Union Libertad"): 3:5 or 18:29[28] |
[28] | |
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England (UK) | 3:5 (1.667) | |||
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Equatorial Guinea | 2:3 (1.5) | |||
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Eritrea | 1:2 (2) | The first versions of the flag were 2:3, as well as the flag of the EPLF, on which the national flag is based. | ||
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Estonia | 7:11 (1.571) | Naval ensign: 7:13 (swallowtail)[29] | [30] | |
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Eswatini | 2:3 (1.5) | |||
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Ethiopia | 1:2 (2) | [31] | ||
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European Union | 2:3 (1.5) | |||
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Falkland Islands (UK) | 1:2 (2) | |||
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Faroe Islands (Denmark) | 8:11 (1.375) | |||
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Fiji | 1:2 (2) | |||
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Finland | 11:18 (1.636) | War flag/ensign: 11:19 (swallowtail)[32] | [32] | |
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France | 2:3 (1.5) | |||
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French Guiana (France) | 2:3 (1.5) | |||
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French Polynesia (France) | 2:3 (1.5) | |||
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French Southern and Antarctic Lands (France) | 2:3 (1.5) | |||
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Gabon | 3:4 (1.333) | |||
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Gambia | 2:3 (1.5) | |||
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Georgia | 2:3 (1.5) | The 1990–2004 flag had a 3:5 ratio. | ||
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Germany | 3:5 (1.667) | [33] | ||
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Ghana | 2:3 (1.5) | |||
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Gibraltar (UK) | 1:2 (2) | |||
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Greece | 2:3 (1.5) | |||
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Greenland (Denmark) | 2:3 (1.5) | |||
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Grenada | 3:5 (1.667) | Civil/state ensign and naval ensign: 1:2[34] | [34] | |
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Guadeloupe (France) | 2:3 (1.5) | |||
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Guam (US) | 22:41 (1.864) | [35] | ||
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Guatemala | 5:8 (1.6) | |||
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Guernsey (UK) | 2:3 (1.5) | Civil and state ensigns: 1:2 | ||
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Guinea | 2:3 (1.5) | |||
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Guinea-Bissau | 1:2 (2) | |||
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Guyana | 3:5 (1.667) | National ensign: 1:2 Civil air ensign: 7:11 |
||
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Haiti | 3:5 (1.667) | |||
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Honduras | 1:2 (2) | |||
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Hong Kong (China) | 2:3 (1.5) | [36] | ||
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Hungary | 1:2 (2) | Civil flag/ensign: 2:3 War flag and naval ensign: 3:4 |
||
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Iceland | 18:25 (1.389) | State/war flag/ensign: 9:16 (swallowtail)[37] | [37] | |
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India | 2:3 (1.5) | [38] | ||
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Indonesia | 2:3 (1.5) | Compare with Flag of Monaco. | ||
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Iran | 4:7 (1.748) | There are two contradicting official construction sheets for the flag of Iran. One constructs the entire flag geometrically, resulting in a flag with an irrational aspect ratio of 75/28 ⋅ (7√5 − 15) ≈ 1.7477. The other, the "simplified" construction sheet, explicitly sets the ratio to 4:7 (1.75), about 0.1 percent wider.[39][40] | ||
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Iraq | 2:3 (1.5) | |||
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Iraqi Kurdistan (Iraq) | 2:3 (1.5) | |||
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Republic of Ireland | 1:2 (2) | [41] | ||
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Isle of Man (UK) | 1:2 (2) | |||
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Israel | 8:11 (1.375) | Civil, naval and air force ensigns: 2:3 | [42] | |
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Italy | 2:3 (1.5) | War flag: 1:1 | [43][44] | |
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Ivory Coast | 2:3 (1.5) | |||
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Jamaica | 1:2 (2) | |||
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Japan | 2:3 (1.5) | [45] | ||
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Jersey (UK) | 3:5 (1.667) | Civil and state ensigns: 1:2 | ||
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Jordan | 1:2 (2) | [46] | ||
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Karakalpakstan (Uzbekistan) | 1:2 (2) | |||
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Kazakhstan | 1:2 (2) | [47][48] | ||
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Kenya | 2:3 (1.5) | Naval ensign: 1:2 | ||
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Kiribati | 1:2 (2) | |||
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North Korea | 1:2 (2) | War, naval and air force flags: 3:4 | [49] The North and South Korean Unification Flag has 2:3 proportions. | |
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South Korea | 2:3 (1.5) | [50] | ||
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Kosovo | 5:7 (1.4) | [51][Note 1] | ||
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Kuwait | 1:2 (2) | |||
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Kyrgyzstan | 3:5 (1.667) | |||
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Laos | 2:3 (1.5) | |||
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Latvia | 1:2 (2) | Naval ensign and jack: 2:3 | [52][53] | |
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Lebanon | 2:3 (1.5) | |||
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Lesotho | 2:3 (1.5) | |||
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Liberia | 10:19 (1.9) | |||
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Libya | 1:2 (2) | Naval ensign: 2:3 | The proportions were the same before 2011: 1:2 for the national flag (a solid green flag) and 2:3 for the naval ensign. | |
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Liechtenstein | 3:5 (1.667) | [54] | ||
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Lithuania | 3:5 (1.667) | Naval ensign and jack: 1:2 | Officially specified in the Law on the National Flag and Other Flags.[55][Note 2] | |
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Luxembourg | 3:5 (1.667) | Civil ensign: 5:7 | By law, both 1:2 and 3:5 ratios can be used, but 3:5 is more common.[56] The civil ensign (a blue-and-white striped flag charged with a red lion) may be flown as a civil flag alongside the national flag, in which case it should have the same proportions as the tricolor. | |
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Macau (China) | 2:3 (1.5) | |||
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Madagascar | 2:3 (1.5) | |||
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Malawi | 2:3 (1.5) | |||
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Malaysia | 1:2 (2) | |||
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Maldives | 2:3 (1.5) | |||
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Mali | 2:3 (1.5) | |||
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Malta | 2:3 (1.5) | [57] | ||
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Marshall Islands | 10:19 (1.9) | |||
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Martinique (France) | 2:3 (1.5) | |||
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Mauritania | 2:3 (1.5) | |||
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Mauritius | 2:3 (1.5) | Civil and state ensigns: 26:57 Naval ensign: 1:2 |
[58] | |
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Mexico | 4:7 (1.75) | Naval Jack: 1:1 | [59] | |
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Micronesia | 10:19 (1.9) | |||
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Moldova | 1:2 (2) | War flag: 2:3 | [60] | |
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Monaco | 4:5 (1.25) | State flag: 2:3 | 4:5 are the official proportions, though the flag is almost always displayed with a 2:3 ratio.[61] Compare with Flag of Indonesia. | |
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Mongolia | 1:2 (2) | [62] | ||
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Montenegro | 1:2 (2) | Naval ensign: 2:5 | [63] | |
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Montserrat (UK) | 1:2 (2) | |||
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Morocco | 2:3 (1.5) | |||
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Mozambique | 2:3 (1.5) | |||
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Myanmar | 2:3 (1.5) | Naval ensign: 5:9 | [64] The pre-2010 national flag had the same 5:9 proportions as the current naval ensign. | |
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Namibia | 2:3 (1.5) | [65] | ||
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Nauru | 1:2 (2) | |||
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Nepal | The flag of Nepal has no aspect ratio | The only non-rectangular national flag; also the only flag with a decimal ratio below 1 (i.e. taller than it is wide). While the red inner part has a ratio of exactly 4:3 (0.75),[66] the complete flag has an irrational aspect ratio of approximately 1.21901:1 due to the blue border.[Note 3][67] | ||
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Netherlands | 2:3 (1.5) | [68] | ||
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New Caledonia (France) | 1:2 (2) | New Caledonia is one of the few regions with two official national flags: both the Kanak flag (shown) and the French tricolor (with 2:3 proportions) have official status. | ||
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New Zealand | 1:2 (2) | [69] | ||
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Nicaragua | 3:5 (1.667) | [70] | ||
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Niger | 6:7 (1.167) | The flag is sometimes displayed with other proportions than the unusual 6:7 ratio, even by the Nigerien government. The constitution does not give a specific aspect ratio.[71] | ||
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Nigeria | 1:2 (2) | [72] | ||
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Niue (New Zealand) | 1:2 (2) | |||
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Norfolk Island (Australia) | 1:2 (2) | [73] | ||
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Northern Cyprus | 2:3 (1.5) | |||
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Northern Ireland (UK) | 1:2 (2) | |||
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Northern Mariana Islands (US) | 1:2 (2) | |||
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North Macedonia | 1:2 (2) | |||
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Norway | 8:11 (1.375) | State/war flag/ensign: 16:27 (swallowtail) | ||
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Oman | 1:2 (2) | Naval ensign: 2:3 | ||
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Pakistan | 2:3 (1.5) | Naval ensign: 1:2 | [74] | |
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Palau | 5:8 (1.6) | [75] | ||
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Palestine | 1:2 (2) | |||
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Panama | 2:3 (1.5) | |||
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Papua New Guinea | 3:4 (1.333) | |||
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Paraguay | 11:20 (1.818) | [76] | ||
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Peru | 2:3 (1.5) | Naval jack: 1:1 | ||
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Philippines | 1:2 (2) | [77] | ||
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Pitcairn Islands (UK) | 1:2 (2) | |||
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Poland | 5:8 (1.6) | [78] | ||
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Portugal | 2:3 (1.5) | Naval jack: 1:1 | [79] | |
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Puerto Rico (US) | 2:3 (1.5) | |||
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Qatar | 11:28 (2.545) | [80] Qatar's flag is the only national flag having a width more than twice its height (not including the unofficial 6:13 proportions of the flag of Rwanda). | ||
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Réunion (France) | 3:4 (1.333) | |||
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Romania | 2:3 (1.5) | Naval jack: 1:1 | ||
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Russia | 2:3 (1.5) | [81] | ||
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Rwanda | 2:3 (1.5) | Images of the flag are sometimes mistakenly seen with a 6:13 ratio.[82] | ||
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Saba (Netherlands) | 2:3 (1.5) | National ensign: 1:2 Civil air ensign: 7:11 |
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Sahrawi Arab Dem. Rep. | 1:2 (2) | |||
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Saint Kitts and Nevis | 2:3 (1.5) | Naval ensign: 1:2 | ||
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Saint Lucia | 1:2 (2) | [83] | ||
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Saint-Pierre and Miquelon (France) | 2:3 (1.5) | |||
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Saint Vincent and the Grenadines | 2:3 (1.5) | Several websites (including Wikipedia's Flag of Saint Vincent and the Grenadines article) also list 7:11 proportions. | ||
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Samoa | 1:2 (2) | |||
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San Marino | 3:4 (1.333) | [84] | ||
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São Tomé and Príncipe | 1:2 (2) | |||
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Saudi Arabia | 2:3 (1.5) | War flag: 5:7 (pennant) Naval ensign: 12:25 |
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Scotland (UK) | 3:5 (1.667) | |||
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Senegal | 2:3 (1.5) | |||
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Serbia | 2:3 (1.5) | [85] The former flag of Yugoslavia had a 1:2 ratio, as did the flag of Serbia and Montenegro. | ||
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Seychelles | 1:2 (2) | [86] | ||
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Sierra Leone | 2:3 (1.5) | |||
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Singapore | 2:3 (1.5) | Civil, state and naval ensigns: 1:2 | [87] | |
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Sint Eustatius (Netherlands) | 2:3 (1.5) | |||
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Sint Maarten (Netherlands) | 2:3 (1.5) | |||
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Slovakia | 2:3 (1.5) | [88] | ||
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Slovenia | 1:2 (2) | Civil ensign: 2:3 | [89] | |
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Solomon Islands | 1:2 (2) | |||
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Somalia | 2:3 (1.5) | |||
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Somaliland | 1:2 (2) | |||
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South Africa | 2:3 (1.5) | [90] | ||
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South Georgia and the South Sandwich Islands (UK) | 1:2 (2) | |||
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South Ossetia | 1:2 (2) | |||
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South Sudan | 1:2 (2) | |||
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Spain | 2:3 (1.5) | Army flag: 1:1 | [91] | |
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Sri Lanka | 1:2 (2) | |||
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Sudan | 1:2 (2) | |||
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Suriname | 2:3 (1.5) | |||
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Sweden | 5:8 (1.6) | War flag/ensign: 1:2 (swallowtail)[92] | [92] | |
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Switzerland | 1:1 (1) | Civil/state ensign: 2:3[93] | One of two square national flags (the other being Vatican City). | |
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Syria | 2:3 (1.5) | The 1932–1958 and 1961–1963 flag, which is still used by some groups in the Syrian civil war, has 1:2 proportions. | ||
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Tajikistan | 1:2 (2) | |||
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Tanzania | 2:3 (1.5) | [94] | ||
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Thailand | 2:3 (1.5) | |||
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Tibet | 5:8 (1.6) | [1] | ||
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Timor-Leste | 1:2 (2) | |||
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Togo | 3:51.667 | The sides of the flag of Togo are in the golden ratio φ = 1+√5/2 ≈ 1.618034, making the flag of Togo one of at most three national flags with irrational proportions (the others being those of Nepal and, if using the geometric construction, Iran). | ||
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Tokelau (New Zealand) | 1:2 (2) | |||
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Tonga | 1:2 (2) | |||
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Transnistria | 1:2 (2) | The civil flag (without the hammer and sickle and star) is also sometimes used with a 2:3 ratio. | ||
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Trinidad and Tobago | 3:5 (1.667) | Civil/state and naval ensigns: 1:2[95] | [95] | |
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Tunisia | 2:3 (1.5) | |||
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Turkey | 2:3 (1.5) | [96][97][Note 4] | ||
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Turkmenistan | 2:3 (1.5) | [98] | ||
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Turks and Caicos Islands (UK) | 1:2 (2) | |||
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Tuvalu | 1:2 (2) | |||
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Uganda | 2:3 (1.5) | |||
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Ukraine | 2:3 (1.5) | Naval ensign 2:3 | ||
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United Arab Emirates | 1:2 (2) | [99] | ||
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United Kingdom | 1:2 (2) | |||
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United States | 10:19 (1.9) | United States law per se does not specify flag proportions.[100] However, proportions were detailed in Executive Order 10834.[101] | ||
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United States Virgin Islands (US) | 2:3 (1.5) | |||
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Uruguay | 2:3 (1.5) | |||
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Uzbekistan | 1:2 (2) | |||
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Vanuatu | 3:5 (1.667) | |||
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Vatican City | 1:1 (1) | The flags of Vatican City and Switzerland are the only two square national flags. | ||
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Venezuela | 2:3 (1.5) | |||
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Vietnam | 2:3 (1.5) | [102] | ||
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Wales (UK) | 3:5 (1.667) | |||
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Yemen | 2:3 (1.5) | [103] | ||
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Zambia | 2:3 (1.5) | [104] | ||
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Zimbabwe | 1:2 (2) | |||
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Åland (Finland) | 17:26 (1.529) |