Asphalt Sealer Calculator — Calculate Sealer Needed & Cost

Asphalt Sealer Calculator

Calculate how much asphalt sealer you need for your driveway, parking lot, or road. Determine gallons needed, coverage, drying time, and total cost based on area and sealer specifications.

Step 1: Area Specifications

2 coats

Area Calculation Tips

For irregular shapes, break the area into rectangles, calculate each separately, then add them together. Most driveways require 2 coats for proper protection.

Step 2: Sealer Parameters

100 sq ft/gal
$25/gal

About Sealer Coverage

Coverage rates vary by sealer type and surface condition. Coal tar sealers typically cover 80-100 sq ft per gallon. Rough or porous surfaces may require more sealer.

Sealer Calculation Results

Summary
Sealer Comparison
Cost Breakdown

Total Sealer Needed

20 gallons
For 1,000 sq ft with 2 coats
Total Area
1,000 sq ft
Material Cost
$500
Labor Cost
$400
Total Cost
$900

Sealer Type Comparison

Sealer Type Coverage (sq ft/gal) Gallons Needed Material Cost

Cost Breakdown

Sealer Calculation Formula

Gallons = (Length × Width × Coats) / Coverage Rate

To calculate sealer needed: Multiply length by width to get area, multiply by number of coats, then divide by coverage rate (sq ft per gallon). Material cost = Gallons × Price per gallon.

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