Paint coverage calculator

Estimate paint for a rectangular surface. Subtract openings, choose your coats, and enter the coverage from the product you intend to buy.

BEFORE YOU BUY

What this estimate covers.

Coverage varies with product, color change, surface texture and condition. Use the coverage on your paint label. Primer, ceilings and trim must be estimated separately.

The formula & assumptions

RELATED GUIDE

How much paint do I need? Wall area, coats and can sizes

Check the measuring method and worked example before using the result.

Read the project guide