If it's a smooth surface, about 3-4 gallons.
800 square meters = 8,611.13 square feet.
800 square feet = about 74.32 m2
800 square feet = 74.32 square meters.
Multiply square feet (800) by 0.0929 to get square meters. So;800 x 0.0929 = 74.32 square meters
There are 9 square feet to a square yard, so 800 square feet = 800/9 square yards = 88 8/9 square yards.
800 square feet (40 x 20 = 800).
800 square feet.
The phrase no matter where you are would not be able to apply to this statement. That could factor in to the cost, as well as what type of paint you are using, and possibly what type of material you are painting.
800 square feet.
800 acres = 34,848,000 square feet.
An area of 5 feet by 800 feet is equal to 5 * 800 = 4,000 square feet. How you can remove 4,000 square feet from an area of 2,000 square feet is a separate and nonsensical question however.
800 square meters is an area equal to 8,611.1 square feet.