Paint Calculator

Calculate how much paint you need for your painting project

Room Dimensions

Paint Calculator Guide

Paint Coverage:

  • Standard Paint: ~350 sq ft per gallon
  • Primer: ~300 sq ft per gallon
  • High Quality: ~400 sq ft per gallon
  • • Coverage varies by surface texture and porosity
  • • Always buy 10-15% extra for touch-ups

Tips:

  • • Measure rooms accurately for best results
  • • Consider primer for dramatic color changes
  • • Two coats usually provide better coverage
  • • Account for texture - textured walls need more paint
  • • Buy all paint at once to ensure color consistency

Standard Assumptions:

  • • Door area: 20 sq ft each
  • • Window area: 15 sq ft each
  • • Standard ceiling height: 8-10 feet
  • • Smooth to lightly textured walls
  • • Does not include trim or baseboards
  • • Rounded up to nearest quart/gallon