Paint Calculator

Calculate how much paint you need for your room. Perfect for DIY home improvement projects with accurate coverage calculations.

Length

Width

Height

Unit

Number of Doors

Number of Windows

Door Width

Door Height

Window Width

Window Height

Paint Coverage (sq ft per gallon)

Most interior paints cover 300-400 sq ft per gallon

Number of Coats

Waste Factor (%)

Include ceiling in calculation

Ceiling Color

Free to use with no registration required

Instant calculations with real-time results

Mobile-friendly responsive design

Dark mode support

Explore our collection of free online calculators and tools