Gallons, mix ratios & job cost for asphalt sealcoating
Enter the exact rate from your sealer's spec sheet. This overrides the surface-condition estimate above.
Each additional coat uses roughly 30% less material than the first.
Leave blank for no sand. Typical traction mix: 2–5 lbs per gallon of concentrate.
Leave blank for none. Typical range: 1–3% of concentrate volume.
Leave blank if you're only using one additive.
Please enter a valid project area first.
Total Mixed Sealer Needed
–gallons
Enter your project details and calculate to see results.
Real-World Purchasing Equivalents
Project Inputs
Estimates are approximate and based on standard industry coverage rates. Always confirm quantities and mix ratios with your sealer manufacturer's spec sheet before ordering.
QuickTonnage's sealcoat calculator also searched as a driveway sealer calculator or asphalt sealer calculator, walks you through five choices:
Open "Advanced" for water dilution, sand, and hardening additive. Hit Calculate Estimate, then flip on Contractor Mode if you're pricing a bid instead of a DIY pail purchase.
Coverage rate drives most of the swing in your number. A smooth, previously-sealed surface covers 100 to 120 sq ft per gallon; a rough or aged surface drops to 70 to 80 sq ft; severely weathered or pitted pavement can fall to 50 to 60 sq ft per gallon.
Seal coat price per square foot is what most sealcoating cost calculators including this one, in Contractor Mode, ultimately produce. DIY sealcoating prices per sq ft usually run lower than a contractor's seal coat price, since a bid layers labor and margin on top of material.
Cost to reseal a blacktop driveway works the same way as a first-time seal you don't need a separate "resealing" mode, just re-enter your current surface condition.
Pricing tar-and-gravel work instead of liquid sealer? That's a chip seal cost calculator question head to the Driveway Cost Estimator instead.
It depends on surface condition and coats enter both into the calculator above and it'll tell you exact gallons, not a rule of thumb.
For most residential driveways, expect a range rather than a fixed price DIY material cost and contractor bids land in very different places once labor is added. Switch on Contractor Mode above to see both.
Run your square footage through the calculator with your local pail price or contractor rate that gives you a real number for your specific driveway instead of a generic average that may not fit your surface condition.
The same way as a first coat just select "Smooth / Previously Sealed" under surface condition, since resealing uses less material per gallon than sealing a rough or aged surface for the first time.
At the standard 70 to 80 sq ft per gallon rate for an average driveway, one 5-gallon driveway sealer pail typically covers 350 to 400 sq ft. Your exact number depends on your surface condition and application method the calculator above shows your pail count directly.
A 55-gallon drum covers roughly 7–8× what a 5-gallon pail covers around 2,750–3,150 sq ft under average conditions. QuickTonnage converts your total gallons into drum and tote counts automatically once you calculate.