Paint Coverage Calculator
Calculate how much paint you need for your room. Estimate gallons and quarts based on room dimensions and coverage.
Inputs
ft
ft
ft
sq ft
Results
Total Area to Paint
472 sq ft
Gallons Needed
2.7 gal
Gallons to Buy
3 gal
Wall Area352 sq ft
Ceiling Area120 sq ft
Total Area to Paint
472 sq ft
Gallons Needed
2.7 gal
Gallons to Buy
3 gal
How to Use This Calculator
- Start by filling in the input fields below. Results update instantly as you type, so you can experiment with different values to see how they affect the outcome.
- Room Length — Length of the room default: 12 ft.
- Room Width — Width of the room default: 10 ft.
- Ceiling Height — Height from floor to ceiling default: 8 ft.
- Coverage per Gallon — Square feet covered per gallon (typically 350-400) default: 350 sq ft.
- Number of Coats — How many coats of paint Minimum value: 1 (default: 2).
- Once all inputs are set, review your results in the Results panel. Here's what each output means:
- Total Area to Paint — shown as a numeric value. This is the primary result of this calculator.
- Gallons Needed — shown as a numeric value. This is the primary result of this calculator.
- Gallons to Buy — shown as a numeric value. This is the primary result of this calculator.
- Wall Area — shown as a numeric value.
- Ceiling Area — shown as a numeric value.
- Explore the related calculators below if you need deeper analysis or want to approach this topic from a different angle.
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Formula
Gallons = (Total Area × Coats) / Coverage per GallonRelated Calculators
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