If you want to know how many countries use flag with red white green colour. Here is the list of flag with red white green colours with flag colour detail. Different countries use different styles of strips of colour use in flags.
List of flag with red white green colours with Detail of flag
Here is the list of horizontal and vertical flag with red white green colours.
1. Flag of Belarus
The flag of Belarus is a red-and-green flag with a white-and-red ornament pattern placed at the staff (hoist) end. The current design of the flag was introduced in 2012 by the State Committee for Standardisation of the Republic of Belarus.
2. Flag of Bulgaria
The flag of Bulgaria consists of three equal size bands in horizontal style in white, green, and red. The flag was first adopted in 1879 and readopted in 1990.
3. Flag of Burundi
The flag of Burundi consists of a white saltire which divides the field into alternating red and green areas. The center of the saltire merges into a white disk, on which there are three red solid six-pointed stars outlined in green. The current ratio is 3:5, which was changed from 2:3 on 27 September 1982.
4. Flag of Hungary
The flag of Hungary consists of a horizontal tricolour of red, white and green.
5. Flag of Iran
The Flag of Iran is consist a tricolour comprising equal horizontal bands of green, white and red with the national emblem (“Allah”) in red centred on the white band and the takbir written 11 times in the Kufic script in white, at the bottom of the green and the top of the red band. It is also known as Three-Coloured Flag.
6. Flag of Italy
The flag of Italy consists of three equally sized vertical panes of green, white and red, with the green at the hoist side.
7. Flag of Lebanon
The flag of Lebanon is formed of two horizontal red stripes enveloping a horizontal white stripe. The white stripe is twice the height ( width ) of the red ones (ratio 1:2:1) a Spanish fess.
8. Flag of Madagascar
The flag of Madagascar consists of Red and white were the colors of the Merina kingdom, which succumbed to France in 1896.
9. Flag of the Republic of Maldives
The flag of the Republic of Maldives consists of green with a red border. The centre bears a vertical white crescent; the closed side of the crescent is on the hoist side of the flag. It was adopted on 25 July 1965. The red rectangle represents the boldness of the nation’s heroes, and their willingness to sacrifice their every drop of blood in defence of their country. The green rectangle in the centre symbolises peace and prosperity. The white crescent moon symbolises the Islamic faith of the state and authorities .
10. Flag of Belize
The flag of Belize was adopted on 21 September 1981, the day Belize became independent. It consists of the Coat of Arms on a blue field with red stripes at the top and bottom.
11. Flag of Mexico
The flag of Mexico is a consist of vertical tricolor of green, white, and red with the national coat of arms charged in the center of the white stripe. While the meaning of the colors has changed over time, these three colors were adopted by Mexico following independence from Spain during the country’s War of Independence.
12. Flag of Tajikistan
The flag of Tajikistan is a horizontal tricolor of red, white and green with a width ratio of 2:3:2, charged with a crown surmounted by an arc of seven stars at the centre.
Here is the list of 12 countries that have flag with red white green colours. This article also gives you basic short colour information used in flags and ratio of red, white and green colour used in flags.