Concrete Curb and Gutter Calculator

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Estimate curb and gutter concrete volume with waste for ordering. Enter the section sizes to get cubic yards, cubic feet, cubic meters, and a quick 80-lb bag estimate. For depth guidance, review the slab thickness guide.

Inputs

Length (ft)

Curb width (in)

Curb height (in)

Gutter width (in)

Gutter depth (in)

Waste (%)

Tip: For curb and gutter, waste of 5–12% is typical depending on forms and joints.

Results

Total volume

2.21 yd³

59.58 ft³ • 1.69 m³

This is a simplified volume estimate; profiles vary.

Breakdown

Curb: 16.67 ft³

Gutter: 37.5 ft³

80-lb bags (rough)

99.31

Assumes ~0.6 ft³ yield per 80-lb bag (varies by mix).

Assumptions

Curb and gutter are modeled as rectangular prisms.
Waste factor adds extra volume for spillage and form variation.
Bag yield is an approximation; confirm with your mix label.

Example

A 50 ft curb and gutter with a 6 in × 8 in curb and a 18 in × 6 in gutter at 10% waste is about 2.21 yd³ of concrete total.

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