Concrete Sealer Calculator
Estimate concrete sealer for a driveway, patio or garage floor in gallons. Coverage runs about 250 sq ft per gallon per coat; two coats is typical.
Concrete Sealer calculator
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How to estimate concrete sealer
- Coverage varies a lot by product and surface porosity - check the label and round up.
- Two thin coats outperform one thick coat. Let the first cure per the label before the second.
- Seal only fully cured concrete (usually 28+ days) and a clean, dry surface.
Frequently asked questions
How many square feet does a gallon of concrete sealer cover?
Roughly 200-300 sq ft per coat for many sealers, but porous or broom-finished concrete uses more.