Concrete Curb calculator

Calculate concrete for curbs and edging. Cubic yards, bags, ready-mix loads and weight — with a waste margin built in, nothing leaves your browser.

Dimensions

FIG. 01

Quantity

Waste margin

Volume ÷ 27 = cubic yards. Pros order to the nearest ½ yard and add a waste margin — running short mid-pour risks a cold joint.

You need

—cu yd

Order to nearest ½ yd → — · —

Cubic feet

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Cubic meters

—

80 lb bags

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60 lb bags

—

Est. weight

—

Best buy

see above

How this is calculated

Approximate the curb as its cross-section (height × width) times the run length. For complex gutter profiles, break it into rectangles and sum them with the quantity field.

cubic yards = volume in cubic feet ÷ 27 × (1 + waste%)

For the full method and sources, see the methodology page. Comparing buying options? Use the bags-vs-ready-mix calculator.

FAQ

How do I calculate concrete for a curb?

Approximate the curb as its cross-section (height × width) times the run length. For complex gutter profiles, break it into rectangles and sum them with the quantity field.