Driveway Sealer Calculator
Enter your surface area and sealer type to find out exactly how many gallons you need — with waste factor, container count, and cost-saving tips included. Works for concrete and asphalt driveways.
How to estimate driveway sealer
- Measure your driveway — multiply length by width in feet. A typical 2-car driveway is 18 ft × 20 ft = 360 sq ft; a long driveway can be 1,000+ sq ft.
- Choose your sealer type — penetrating sealers go further (200+ sq ft/gal) but need reapplication more often. Acrylic film-formers cover less but last longer.
- Decide on coats — one coat for maintenance, two coats for new concrete or heavily weathered surfaces. Wait 24 hours between coats.
- Add 10–15% waste — rough or porous surfaces absorb more sealer than smooth. Broom-finished concrete uses 20–30% more than trowel-finished.
- Check the product label — every manufacturer publishes a coverage rate. Override the default in the calculator for an exact result.
Quick rule of thumb: For a 1,000 sq ft driveway with acrylic sealer, expect 5–6 gallons for one coat. For asphalt sealcoating, expect 10–14 gallons (lower coverage rate of 75–125 sq ft/gal).
Sealer coverage reference
| Sealer Type | Coverage (sq ft/gal) | Best For |
|---|---|---|
| Penetrating Sealer | 150–250 | New concrete, driveways, patios |
| Acrylic / Film-Forming | 200–400 | Decorative concrete, exposed aggregate |
| Epoxy / Polyurethane | 100–200 | Garage floors, heavy traffic areas |
| Asphalt Driveway Sealer | 75–125 | Asphalt driveways |
Coverage rates vary by surface texture and porosity. Rough or porous surfaces use more sealer; smooth surfaces use less. Always check the product label.
Frequently asked questions
Driveway sealing cost reference
| Method | Cost per sq ft | 1,000 sq ft est. | Notes |
|---|---|---|---|
| DIY (materials only) | $0.05–$0.12 | $50–$120 | Brush/roller application |
| Professional sealing | $0.15–$0.30 | $150–$300 | Spray application, labor included |
| Asphalt sealcoating (pro) | $0.17–$0.24 | $170–$240 | Coal tar or acrylic emulsion |
A 5-gallon pail of acrylic concrete sealer covers 200–400 sq ft and costs $30–$60. Asphalt sealers cover less (75–125 sq ft/gal) and typically cost $15–$25 for 5 gallons.