Calculator
Paint Calculator
Estimate wall area and paint gallons for common projects.
How to Use This Calculator
Use this calculator to estimate paint quantities for walls. It applies basic deductions for doors and windows and lets you adjust for multiple coats and manufacturer coverage rate.
Estimate Disclaimer
This calculator is for rough planning and estimating only. It is not code-specific and it is not a substitute for approved plans, engineering, manufacturer installation instructions, or local building requirements.
Always verify final dimensions, waste factors, material yield, opening sizes, header requirements, spans, fastening schedules, and any project-specific requirements before ordering material or building.