basic

Driveway Seal-Coat Gallons Needed Calculator

gallons = area_sqft × coats / coverage_per_gallon.

Compute the gallons of asphalt seal-coat needed to cover a driveway, given the area in square feet, the planned number of coats, and the manufacturer-rated coverage per gallon (typical 70-80 sq ft/gal for the first coat on rough asphalt; 100-125 sq ft/gal on smooth). Reports whole 5-gallon buckets.

Marcus Laurent By Marcus Laurent
Published Last reviewed 1 min read

Inputs

sq ft
sq ft/gal

Results

Enter values and click Calculate to see results.
Was this helpful?

How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

gallons = area · coats / coverage_per_gal.

In depth

Compute the gallons of asphalt seal-coat needed to cover a driveway, given the area in square feet, the planned number of coats, and the manufacturer-rated coverage per gallon (typical 70-80 sq ft/gal for the first coat on rough asphalt; 100-125 sq ft/gal on smooth). Reports whole 5-gallon buckets.