How much paint is needed to paint a house ? Estimate or exact

One gallon can of paint will cover up to 400 square feet, which is enough to cover a small room like a bathroom. Two gallon cans of paint cover up to 800 square feet, which is enough to cover an average size room. This is the most common amount needed, especially when considering second coat coverage.

Step-by-step explanation:

well it depends on how big the house so... One gallon can of paint will cover up to 400 square feet, which is enough to cover a small room like a bathroom. Two gallon cans of paint cover up to 800 square feet, which is enough to cover an average size room. so about 2  maybe 3 gallons

Step-by-step explanation:

hope this is useful!

do you have the measurements?