Plan curved paving with confident quantities today. Adjust inner radius, path width, and segment angle. Choose paver dimensions, include joints, and reduce surprises onsite.
| Inner radius (m) | Path width (m) | Angle (deg) | Paver (mm) | Joint (mm) | Waste (%) | Estimated pavers |
|---|---|---|---|---|---|---|
| 1.50 | 0.50 | 60 | 200×100 | 3 | 7 | 47 |
| 2.00 | 0.60 | 90 | 200×100 | 3 | 7 | 111 |
| 3.00 | 0.80 | 120 | 225×112 | 4 | 10 | 236 |
Curved paths behave differently than straight runs because the inner edge shortens while the outer edge stretches. This calculator treats the paved band as a ring sector, so quantities scale with radius, width, and turning angle. Using geometry avoids under-ordering on broad curves and over-ordering on tight arcs. It also outputs arc lengths so you can plan edge restraints and edging cuts. If you are matching an existing curve, keep units consistent and recheck measurements before ordering.
Mark the curve center with a stake, then measure to the inner edge at several points to confirm a consistent radius. If the curve is part of a circle, measure the central angle using layout strings or chord points. When field conditions prevent measuring width, capture both inner and outer radii and let the tool compute the band width.
Pavers rarely touch edge to edge, so the calculator expands each unit by the planned joint width. The effective module area equals (length plus joint) multiplied by (width plus joint), converted to square meters. This approach matches real coverage for consistent joints and helps prevent small shortages caused by spacing.
Curves typically require trimming along one edge, and patterned layouts can increase offcuts. A practical waste factor for simple running bond is often 5–8%, while tighter radii or herringbone may push 10–15%. The cut estimate shown is a heuristic to flag curves that may need extra full units for clean edges. For permeable joints, consider extra jointing aggregate and bedding adjustments.
Review the computed curve area, the inner and outer arc lengths, and the rounded paver count. If your supplier sells by pallet, convert the total into pallets and add one partial pack for repairs. For projects with multiple arcs, repeat calculations per segment and sum the rounded totals to preserve contingency. Verify lead times.
Use width mode when you know the paved band width. Use outer radius mode when you can measure both edges of the curve accurately in the field.
Enter the turn angle of the segment you are paving. A quarter circle is 90 degrees, a half circle is 180 degrees, and a full circle is 360 degrees.
Yes. Wider joints reduce pavers per square meter because each paver occupies more effective area. Small joint changes can matter on larger curved areas.
For simple layouts, start at 7%. Increase to 10–15% for tight radii, complex patterns, or when you expect more trimming and breakage.
Use one size at a time for the most reliable estimate. If you mix sizes, run separate calculations per size and combine counts according to your pattern plan.
It is a planning indicator based on arc length versus module size. Actual cuts depend on pattern, starting line, and how you finish the inner and outer edges.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.