Paint Calculator
Estimate gallons of paint for walls and ceilings.
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Inputs
Results
- Paintable area
- 422 sq ft
- Paint needed
- 2.4 gallons
Tips
- One gallon typically covers about 350 sq ft per coat.
- Add 10% extra for touch-ups on textured walls.
All calculators, planners, and checklists provide estimates for planning purposes only. They are not professional advice. Read full disclaimers
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About Paint Calculator
Free online paint calculator. Estimate gallons of paint for walls and ceilings. Instant estimates for your materials project — no signup required.
Why choose Online Tool Hub?
- Free forever — supported by non-intrusive ads
- Privacy-first — calculations stay in your browser
- Works on desktop and mobile
- Part of 18 free materials tools on Online Tool Hub
Frequently asked questions
- How much paint do I need?
- Enter room dimensions, doors, windows, and coat count. The calculator estimates paintable square footage and gallons using a standard 350 sq ft per gallon coverage rate.
- Should I add extra paint?
- Add about 10% extra for textured walls, touch-ups, and future repairs.
- Is my project data sent to a server?
- No. Homeowner calculators run in your browser. Your measurements stay on your device.
- Do I need an account?
- No signup is required. All homeowner tools on Online Tool Hub are free to use.