Paver Calculator: measuring notes and method
Separate field pavers and borders
Measure field and border areas independently when they use different units or layouts.
Keep the pavement layers distinct
Use the same footprint to estimate bedding and base at their own specified depths. Paver thickness is not the bedding depth, and pack count does not include edging or jointing material.
CHECK A PRACTICAL EXAMPLE
Pack rounding changes the purchased quantity
A 20 m² area uses illustrative 200 × 100 mm pavers, 100 per pack.
5% cutting allowance
- Pavers to buy
- 1,050
- Packs to buy
- 11
10% cutting allowance
- Pavers to buy
- 1,100
- Packs to buy
- 11
Both the count of required pavers and pack rounding matter. This face-area model excludes joint gaps; borders and different paver types need their own quantities.
Fixed comparison in metric units. Values are illustrative unless linked to a recorded project; changing the calculator above does not change this example.
Formula
Units = net area with waste ÷ unit face area, rounded up. Packs = unit count ÷ units per pack, rounded up.
Worked examples in metric and imperial units
Illustrative values match Reset example and stay fixed when you edit the calculator. Both columns describe the same calculation; converted inputs are rounded.
Metric worked example
- Total surface area
- 24 m²
- Openings / excluded area
- 0 m²
- Paver length
- 200 mm
- Paver width
- 100 mm
- Pavers per pack
- 100
- Waste allowance
- 10 %
Pavers to buy: 1,320
Imperial worked example
- Total surface area
- 258.3339 ft²
- Openings / excluded area
- 0 ft²
- Paver length
- 7.874 in
- Paver width
- 3.937 in
- Pavers per pack
- 100
- Waste allowance
- 10 %
Pavers to buy: 1,320
Follow the calculation
Lengths in this working are in metres.
- Net area = 24 − 0 = 24 m².
- Unit face area = 0.2 × 0.1 = 0.02 m².
- Divide 26.4 m² including waste by unit face area and round up. Divide the rounded count by 100 per pack and round up again.
Reviewed 19 October 2026. How calculations are checked · Report a correction