Pavement Calculator – Concrete, Asphalt, Pavers & Gravel
Plan your patio, pathway, or driveway with confidence. Enter your dimensions, pick a pavement type, set thicknesses for the surface and base, and apply a waste factor. The tool returns volumes for surface and base layers (in both metric and imperial), and for pavers it also estimates the number of pieces needed.
What It Calculates
- Total area
- Surface layer volume (e.g., concrete or asphalt)
- Base/sub-base volume (e.g., compacted road base or gravel)
- Paver count (when “Pavers” is selected), based on size + joint gap
Recommended Thickness (General Guides)
- Patios/paths: Surface 2–4 in; base 4–6 in
- Driveways: Surface 4–6 in; base 6–8+ in
- Pavers: Paver 2–2.5 in; bedding sand ~1 in; base 4–8 in+
Related Tools
Planning foundations or base layers? These will help: Concrete Slab Calculator and Gravel Calculator.
FAQs
Do I need a base layer?
Yes—base layers improve drainage and reduce settlement. Thicker bases are recommended for driveways and poor soil.
How much waste should I add?
10% is common for cutting and irregular edges; use 5% for simple rectangles and 15% for complex shapes.
Can I switch units?
Absolutely—toggle between imperial and metric. Labels will update to the correct units.