To find the amount of paint you need per wall use this simple formula.
How to find the area of a room to paint.
The coverage amount is listed on the label of the paint can.
If you have the wall measurements calculate area by multiplying the wall s length by its height then compare that with the coverage per can.
If for example the wall s area is 50 square feet and your paint covers 10 square feet you will need 5 cans to complete the project.
W x h area in square feet 360 approximate square footage covered by one gallon of paint area 360 of gallons needed to paint your project.
Click the button to calculate the amount of paint and man hours needed for this job.
The estimate divides the total square footage by 350 as one gallon of paint covers 350 square feet.
The calculation to find the area of a wall we multiply wall height x wall width.
Your paint calculation will update if you change the number of desired coats of paint.