Curb and Gutter Concrete Calculator: Yards per Linear Foot
100 ft of curb and gutter (6 in curb 18 in high, 18 in gutter 6 in thick) needs 6.11 cubic yards of concrete with 10% extra.
Advanced options: waste, prices
NRMCA advises ordering 4 to 10 percent over the estimate.
Concrete needed (with 10% extra)
6.11 yd³
4.67 m³ · 150 ft³ before extra
Curb and gutter: 100 ft × 6 in × 18 in × 18 in × 6 in. Over about 1 yd³: order ready-mix.
Premix bags
- 80 lb275
- 60 lb367
- 50 lb440
- 40 lb550
- Ready-mix cost
- $978
- Weight
- 22,500 lb
Full breakdown
| Volume before extra | 5.56 yd³ · 4.25 m³ |
|---|---|
| With 10% extra | 6.11 yd³ |
| Weight (150 lb/ft³) | 22,500 lb · 11.25 tons |
| Pallets of 40 lb (80 bags each) | 7 |
| Pallets of 60 lb (56 bags each) | 7 |
| Pallets of 80 lb (42 bags each) | 7 |
| Truckloads at 12 yd³ | 1 |
| Truckloads at 8 yd³ | 1 |
Bag counts round up, as Quikrete's own calculator does. Cost uses your prices; delivery and short-load fees are extra.
Key takeaways
- Curb and gutter volume = cross-section area × length.
- The default 6×18 in curb + 18×6 in gutter is 1.5 sq ft.
- One cubic yard makes 18 linear ft of that section.
- 100 ft needs 6.11 yd³ with 10% extra.
How Much Concrete for Curb and Gutter?
You need the cross-section area of curb plus gutter × the length. The default section (6×18 in curb, 18×6 in gutter) is 1.5 sq ft, so 100 ft holds 150 ft³, or 6.11 yd³ with 10% extra.
Curb and Gutter Formula
ft³ = Length × [(curb width × curb height) + (gutter width × gutter thickness)] ÷ 144How Many Feet of Curb and Gutter per Yard?
One cubic yard (27 ft³) makes 18 linear ft of the default curb and gutter before extra.
Curb Only vs Curb and Gutter
| Length | Curb only (6×18 in) | Curb + 18 in gutter |
|---|---|---|
| 50 ft | 1.53 yd³ | 3.06 yd³ |
| 100 ft | 3.06 yd³ | 6.11 yd³ |
| 250 ft | 7.64 yd³ | 15.28 yd³ |
| 500 ft | 15.28 yd³ | 30.56 yd³ |
Worked Examples: Three Curb Runs
Driveway apron curb, 40 ft. 40 × 1.5 = 60 ft³; with 10% extra, 2.44 yd³.
Parking edge, curb only 6×18 in, 120 ft. 120 × 0.75 = 90 ft³; with 10% extra, 3.67 yd³.
Street frontage, 250 ft of curb and gutter. 250 × 1.5 = 375 ft³; with 10% extra, 15.28 yd³, or 2 trucks at 12 yd³.
How to Measure Curb and Gutter
- Measure the curb width (top) and total height in inches.
- Measure the gutter width and slab thickness in inches.
- Measure the run length in feet along the curb line.
- Enter each straight run as a part; curves can be measured along their center line.
Curb vs Gutter: What Is the Difference?
The curb is the raised vertical edge that keeps traffic and water in place; the gutter is the flat or sloped slab beside it that carries water to drains. The calculator handles either alone (set gutter width to 0 for curb only) or both together.
Concrete Curb Cost per Linear Foot
Concrete for the default curb and gutter costs about $10–$12 per linear foot at $160–195 per cubic yard (Concrete Network); forming, placing and finishing add labor. Contractors quote installed prices per linear foot.
Curb and Gutter in Metric
In metric, multiply the cross-section in square meters by the length in meters: a 15×45 cm curb with a 45×15 cm gutter is 0.135 m², so 30 m of curb and gutter holds 4.05 m³ before extra. Switch the calculator to Metric.
Curb and Gutter Concrete for a Driveway Apron
A 30 ft driveway apron curb with the default section holds 45 ft³, or 1.83 yd³ with extra; combine it with the driveway slab as a part in the calculator so one truck brings both.
Curb and Gutter Concrete Calculator FAQ
How do you figure out how much concrete for curb and gutter?
Multiply the cross-section area in square feet by the length in feet to get cubic feet, divide by 27 and add 10%.
How many feet of curb and gutter per yard of concrete?
One cubic yard makes about 18 linear ft of a 6×18 in curb with an 18×6 in gutter.
Do you put rebar in a concrete curb?
Follow the local road or site specification; this site has no code source for curb reinforcement.
How do you form a curb and gutter for concrete?
Set straight form boards for the curb face and gutter edge, stake them to line and grade, and check dimensions before ordering the volume from this calculator.
Next step
Total all runs as parts in the calculator, then check truck count on the concrete truck loads.
Official sources
Last reviewed 2026-11-05. Numbers come from our tested engine; see how we calculate and our sources.