Solve backwards
How big a patio will my paver sealer cover?
- 5 galThe example worked below
- Paver Sealer CalculatorEvery figure is its own
You have
How much paver sealer?
That is 5 gal(18.9 L). Worked by the Paver Sealer Calculator at the settings below.
The settings it uses
- Number of Coats
- 2
What it will do
438 sq ft of paving
40.6 m²
One patio. Enough for a patio about 20.9 × 20.9 ft.
Or several. About 1 patio of the size the Paver Sealer Calculator opens on: a patio about 17.9 × 17.9 ft.
Check it forwards
- Paver Area
- 438 sq ft
- It asks for
- 5 gal
- You have
- 5 gal
The Paver Sealer Calculator asks for 5 gal at that size, and 6 gal one step larger.
If you had more, or less
Around your amount
Each worked by the Paver Sealer Calculator at the same settings.
Half
2.5 gal
175 sq ft
a patio about 13.2 × 13.2 ft
Yours
5 gal
438 sq ft
a patio about 20.9 × 20.9 ft
Half as much again
7.5 gal
613 sq ft
a patio about 24.7 × 24.7 ft
Double
10 gal
875 sq ft
a patio about 29.6 × 29.6 ft
Common amounts
What each amount of paver sealer covers
The sizes it is usually sold in, each worked by the Paver Sealer Calculator at the settings above.
| You have | It covers | As one patio | Average patios |
|---|---|---|---|
| 1 gal(3.8 L) | 87.5 sq ft(8.13 m²) | a patio about 9.4 × 9.4 ft | under 1 |
| 2 gal(7.6 L) | 175 sq ft(16.3 m²) | a patio about 13.2 × 13.2 ft | under 1 |
| 5 gal(18.9 L) | 438 sq ft(40.6 m²) | a patio about 20.9 × 20.9 ft | 1 |
| 10 gal(37.9 L) | 875 sq ft(81.3 m²) | a patio about 29.6 × 29.6 ft | 2 |
One rate from the middle of the band
The calculator charges every coat at 175 square feet per US gallon, about 16 m² per 3.8 litres, a single value from the 150 to 200 square feet its source quotes for paver sealer. There is no field for the rate on your own pail, and a sealer at the bottom of that band covers roughly a seventh less patio than shown.
The second coat is charged like the first
Two coats is standard for most paver sealers, and the calculator bills the second at the same rate as the first, although it lands on pavers the first coat has partly filled. So the patio here is the cautious figure, and a high-build sealer made for one thicker coat changes the answer — check your product.
Plan area, not wetted area
Only the flat area of the paving is counted. The sand joints between units, the chamfered edges of each paver and the sealer left in the sprayer or roller are all outside it, and there is no waste allowance in the calculator — so keep a little of what you have in reserve for the last corner.
How the answer is worked
Nothing here is a second formula. The Paver Sealer Calculator runs forwards — a size in, a quantity out — and this page grows its own starting patio in proportion until the quantity it asks for is what you have. Where it rounds up to whole containers, the answer is the largest size before the next one would be needed.
Where the calculator adds an allowance for cuts or breakage when you order, the same allowance comes off here, because it is the same calculator: a stack you already own finishes less than its face value. Where it adds none, neither does this page — the settings beside the answer say which.
Paver Sealer Calculator
runs it forwardsEstimate how many gallons or litres of paver sealer you need for a patio, walkway, or driveway.
Work out what to buy insteadSolve backwards
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Solve backwards
Start from what is already in the yard
Paint, sheets, rolls, bags and pieces, each read the other way by the calculator that orders it.
The calculator's own figures
Nothing is estimated twice: the page runs the same calculator you would order with.
The largest size that fits
Where a calculator rounds up to whole containers, the answer stops before the next one.
Both unit systems
Gallons and litres, square feet and square metres, side by side.
Frequently asked questions
- How much paving does 5 gal of paver sealer cover?
- At the Paver Sealer Calculator's own settings, 438 sq ft (40.6 m²) — a patio about 20.9 × 20.9 ft. That is about 1 patio of the size the calculator opens on: a patio about 17.9 × 17.9 ft. Every figure follows the settings, which you can change in the calculator.
- How much paving does 20 L of paver sealer cover?
- At the Paver Sealer Calculator's own settings, 40.6 m² (438 sq ft) — a patio about 6.4 × 6.4 m. That is about 1 patio of the size the calculator opens on: a patio about 5.5 × 5.5 m. Every figure follows the settings, which you can change in the calculator.
- How many square feet does a gallon of paver sealer cover?
- About 150 to 200 square feet per US gallon per coat, roughly 14 to 19 m² per 3.8 litres, depending on how porous the pavers are and what kind of sealer it is. The calculator uses 175 per coat; at two coats a gallon seals about half that area of patio.
- How many coats of sealer do pavers need?
- Two is standard for most paver sealers, so the second coat can fill what the first soaked into. Some high-build sealers are made for a single thicker coat — the product's own label decides, and one coat roughly doubles the patio a given amount will cover.
- Is paver sealer sold in litres or gallons?
- Both, but the calculator works in US gallons and square feet because its coverage rate is quoted that way, and a metric reader is shown the whole-gallon count converted afterwards. A litre figure here is therefore a converted US gallon rather than a metric pail size.