Sealcoat Calculator

Coverage, coats, and condition

Sealer quantity comes down to area divided by coverage rate, multiplied by coats, adjusted for how thirsty the surface is. Older, oxidized, and porous asphalt drinks more sealer, so the tool applies a condition factor and a waste factor. It then shows concentrate gallons, the mixed volume after water is added, and an estimated sand load for traction and wear.

Inputs it uses

• Square footage of pavement to be sealed.
• Coverage rate per gallon per coat, which you can tune to the product.
• Coats, condition, waste, sand loading, and dilution.

Limitations

This is a material quantity estimate, not an application specification and not a manufacturer recommendation. Coverage varies with porosity, dilution, temperature, and application method. Follow the product data sheet and confirm the mix with your applicator.

How much sealcoat do I need?

Divide the square footage by the coverage rate per gallon and multiply by the number of coats, then add a waste factor. Coverage varies with surface porosity and dilution, so set the rate to match your product.

What coverage rate should I use?

Mixed sealer often covers roughly 50 to 80 square feet per gallon per coat. Rougher and older asphalt uses more. Confirm the target rate with the product and applicator.