Free Paint Coverage Calculator
Calculate how much paint you need based on wall area, coverage rate, and number of coats. Quick and easy paint estimator.
sq ft
sq ft/gallon
Standard interior latex covers ~350 sq ft/gal
Gallons Needed
3 gallons
Total Coverage Needed800 sq ft
Or in Quarts10 quarts
Gallons Needed vs Coverage Rate
How to Calculate Paint Coverage
Formula
Gallons = (Area × Number of Coats) / Coverage Rate
Standard interior latex paint covers approximately 350-400 sq ft per gallon. Factors that reduce coverage include rough or textured surfaces, porous substrates, and dark-to-light color changes.
Example Calculation
Painting 400 sq ft of wall area with 2 coats at 350 sq ft/gallon.
- 01Total coverage = 400 × 2 = 800 sq ft
- 02Gallons = 800 / 350 = 2.29 → 3 gallons
Frequently Asked Questions
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