Enter your driveway's Length and Width, then choose your Surface Condition, Application Method, and Number of Coats — the Asphalt Sealer Calculator figures out exactly how much Sealer you Need, along with your Total Area, Coverage Rate, and Estimated Material Cost before you buy a single bucket.
Sealer Needed
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Total Area
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Coverage Rate
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Estimated Material Cost
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Measure the length and width of your driveway in feet, then multiply them together. For irregular shapes, break the area into rectangles and add them up.
Spray application typically covers 100 square feet per gallon, while hand/brush application covers 50-60 square feet per gallon due to thicker application and less even distribution.
Two coats are recommended for driveways in poor condition with cracks and weathering. The second coat typically requires about 1/3 less product than the first coat.
Poor condition surfaces with cracks and porosity absorb more sealer, reducing coverage. Good condition surfaces provide better coverage rates since they're less porous.
This calculator is not recommended for extremely porous asphalt situations, as coverage will be significantly lower than even the 'poor condition' calculation shows.
Asphalt sealer typically costs between $25-40 per gallon, depending on the brand and quality. Premium sealers may cost more but often provide better durability.
Most driveways should be sealed every 2-3 years, depending on traffic, weather conditions, and the quality of the previous sealcoat application.
Factors that reduce coverage include surface porosity, temperature during application, multiple coats, and application method. Always order 10-15% extra sealer for contingencies.