Input the dimensions of the room to be painted.
How to find the area of a room to paint.
To find the amount of paint you need per wall use this simple formula.
Interior paint coverage depends on the brand of paint used.
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.
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.
Click the button to calculate the amount of paint and man hours needed for this job.
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.
Your paint calculation will update if you change the number of desired coats of paint.
Use this to adjust the values in the paint coverage section below.