Asphalt Sealcoat Calculator

Estimate sealcoat gallons, pails and project cost.

Driveway length (ft)

Driveway width (ft)

Number of coats

Coverage per gallon per coat (sq ft)

Pail size (gal)

Price per pail ($)

Estimate

How to use this calculator

Enter your project measurements and allowances. The estimate updates instantly. Round ordering quantities up and confirm product coverage with your supplier.

Formula

Gallons = surface area × coats ÷ coverage per gallon.

Planning tip

Field conditions, cuts, overlaps, compaction and local building requirements can change actual material needs. Use this result as a planning estimate and verify critical structural details with a qualified professional.

Frequently asked question

Should I include waste?

Yes. Most projects need extra material for cuts, breakage, irregular layouts and measurement differences. The appropriate allowance depends on the product and project.