How Much Concrete Sealer Do I Need? Coverage Calculator & Guide
Updated May 2026
Most concrete sealer coverage problems come from buying too little. This guide walks you through exactly how much you need for a driveway, patio, pool deck or paver project — plus a product-size table so you can pick the right pack the first time.
The simple formula (concrete sealer per square foot)
For Nanoprotect applied as the recommended double coat (wet-on-wet): 1 gallon covers ~135 sq ft. Single coat coverage is up to 200 sq ft per gallon, but a single coat is not recommended if you want 36+ months of protection.
Quick math: gallons needed = square feet ÷ 135 (double coat) or square feet ÷ 200 (single coat). Round up. Need to skip the math? Use our coverage calculator — type in your square footage and it recommends the exact pack.
How much concrete sealer do I need for a driveway?
Measure length × width of your driveway in feet, then divide by 135 for a double coat. Typical driveways:
- Single-car driveway (~300 sq ft) → 2.5 gallons (2× 1-gallon bottles or 1 concentrate)
- Standard 2-car driveway (~600 sq ft) → 4.5 gallons (1× 5-gallon pail)
- Long 2-car driveway (~900 sq ft) → 7 gallons (1× 5-gallon + 2× 1-gallon)
- Large 3-car driveway (~1,200 sq ft) → 9 gallons (2× 5-gallon pails)
Full product details on the driveway sealer page, including application tips for sloped or cracked driveways.
How much concrete sealer do I need for a patio?
Most residential patios are 200–500 sq ft. For a double coat:
- Small patio (~150 sq ft) → 1.2 gallons (1× 1-gallon + small surplus, or 1 concentrate)
- Average patio (~300 sq ft) → 2.5 gallons (1 concentrate makes 3 gallons)
- Large patio (~500 sq ft) → 4 gallons (1 concentrate + 1 gallon)
Stamped, broom-finished and exposed-aggregate patios all use the same coverage math. See the patio sealer page for surface-specific application notes.
How much concrete sealer do I need for pavers?
Pavers are more porous than poured concrete, so plan on the high end of the coverage range (closer to 120 sq ft per gallon on a double coat). Common paver projects:
- Walkway (~100 sq ft) → 1 gallon ready-to-use
- Paver patio (~400 sq ft) → 3.5 gallons (1 concentrate + 1 gallon)
- Pool deck (~800 sq ft) → 6.5 gallons (1× 5-gallon + 2× 1-gallon)
- Driveway pavers (~600 sq ft) → 5 gallons (1× 5-gallon pail)
More on sealing brick, travertine and concrete pavers on the paver sealer page.
Coverage calculator by product size
Nanoprotect comes in three sizes. Use this table to pick the most cost-effective pack for your project — or jump straight to the coverage calculator for an exact recommendation.
| Product size | Coverage (1 coat) | Coverage (2 coats) | Recommended for |
|---|---|---|---|
| 1 Gal ready-to-use | 200 sq ft | 135 sq ft | Small patios, walkways |
| 5 Gal ready-to-use | 1,000 sq ft | 675 sq ft | Average 2-car driveway |
| Concentrate (makes 3 Gal) | 600 sq ft | 405 sq ft | Most cost-effective option |
Coverage Calculator
Find the right size for your concrete surface.
Recommended for your project:
Pack of 4 — 1 Gal Ready-to-Use
Bundle discount applied automatically at checkout.
Coverage tips that save money (and lap lines)
- Always round UP — porous concrete drinks more sealer than you think.
- Older or rougher concrete needs ~10–20% more than the table above.
- Buy a small extra so you can touch up high-wear spots later (driveway tire tracks, grill area).
- Apply the second coat wet-on-wet within 10 minutes of the first — never let coat 1 dry first.
- One 33.9 fl oz concentrate (makes 3 gallons) is almost always cheaper per sq ft than buying 1-gallon bottles.
Ready to order?
See exact pack sizes and prices on our concrete sealer page, or pick by surface: driveway sealer, patio sealer, paver sealer. Still unsure on quantity? The coverage calculator recommends the exact pack for your square footage in one click.