Paint Calculator (US/UK)

Paint Calculator

Select your preferred measurement units (US or UK/Metric)
Add the dimensions for each wall you want to paint
Specify any windows or doors that won’t need painting
Use the “Include Wall in Calculation” checkbox to include or exclude specific walls
Adjust the paint settings based on your specific paint product
The calculator will automatically show how much paint you need to buy

Wall Dimensions

Paint Coverage (sq ft per gallon)

Check your paint can for this information. Typically 350-400 sq ft per gallon for most paints.

Number of Coats

Two coats are standard for most interior walls.

Extra for Spillage/Waste (%)

Adding 10% extra is recommended to account for spillage and waste.

Total Wall Area:

0.00 square feet

Total Paint Needed:

0.00 gallons

Recommended Purchase:

0 gallons