Use this to adjust the values in the paint coverage section below.
How to find the area of a room to paint.
To find the amount of paint you need per wall use this simple formula.
The calculation to find the area of a wall we multiply wall height x wall width.
Click the button to calculate the amount of paint and man hours needed for this job.
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.
The coverage amount is listed on the label of the paint can.
Interior paint coverage depends on the brand of paint used.
The estimate divides the total square footage by 350 as one gallon of paint covers 350 square feet.
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.