Bolivia’s national flag has an official proportion of 15:22.
This means the flag is 15 units high for every 22 units of length. The ratio was formally established by Supreme Decree No. 27630 in 2004, which specified dimensions of 7.5 squares in width by 11 squares in length. Doubling those measurements produces the standardized 15:22 proportion.
The flag itself is a horizontal tricolor of equal red, yellow, and green bands. The red band is at the top, yellow in the middle, and green at the bottom. Bolivia uses a civil version without the coat of arms and a state flag bearing the coat of arms in the center; both follow the same official proportions.
A common mistake is to assume that every national flag uses a familiar ratio such as 2:3 or 3:5. Bolivia’s dimensions were not clearly defined when the flag was adopted in 1851, so the modern ratio was fixed much later. The 2004 decree also standardized the flag’s colors and clarified distinctions between civil and state use.