Calculating your pavers needed is straightforward once you know the Paver formula and what each input means. This guide explains the method in plain language, walks through a manual calculation, and gives worked examples you can follow — then you can do it instantly with the Paver Calculator.
What is Paver?
The Paver calculation tells you your pavers needed from a few simple inputs. The figure you are solving for here is the pavers needed.
The Paver formula
This calculation combines several inputs through a multi-step method rather than a single one-line formula. Enter the values below and the calculator resolves each step in order. The inputs it needs are:
- Area to pave — a value measured in m². Example: 20 m².
- Area per paver — a value measured in m². Example: 0.09 m².
- Wastage allowance — a percentage, such as an annual rate. Example: 5%.
How to calculate it step by step
- Write down the area to pave (for example, 20 m²).
- Write down the area per paver (for example, 0.09 m²).
- Write down the wastage allowance (for example, 5%).
- Apply the formula above to get your pavers needed.
- Double-check the result with the Paver Calculator.
Worked examples
Example 1
| Input / Output | Value |
|---|---|
| Area to pave | 20 m² |
| Area per paver | 0.09 m² |
| Wastage allowance | 5% |
| Pavers needed | 234 |
With area to pave of 20 m², area per paver of 0.09 m² and wastage allowance of 5%, the pavers needed works out to 234.
Example 2
With area to pave of 40 m², area per paver of 0.09 m² and wastage allowance of 5%, the pavers needed works out to 467.
| Result | Value |
|---|---|
| Pavers needed | 467 |
Example 3
With area to pave of 10 m², area per paver of 0.09 m² and wastage allowance of 5%, the pavers needed works out to 117.
| Result | Value |
|---|---|
| Pavers needed | 117 |
Tips for an accurate result
- Keep your units consistent — mixing, say, months with years or grams with kilograms is the most common source of error.
- Round only at the very end. Rounding inputs early can shift the final answer noticeably.
- Re-run the numbers whenever an input changes, rather than estimating from an old result.
Prefer not to do the maths by hand? — the Paver Calculator does it instantly, for free, with the formula and a worked example built in.
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