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How to Calculate Paint Needed
Formula
One gallon of paint covers approximately 350 square feet with one coat. Subtract doors (21 sq ft each) and windows (15 sq ft each) from total wall area.
Most projects require two coats for even coverage, especially when changing colors. Primer adds a third coat.
Common use cases:
- Interior room painting
- Whole house paint estimates
- Accent wall projects
Frequently Asked Questions
Sarah Chen
Financial Analyst, CFA
Sarah is a Chartered Financial Analyst with over 8 years of experience in investment management and financial modeling. She specializes in retirement planning and compound interest calculations.
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