Concrete Curb & Gutter Calculator
Calculate concrete volume for curbs, gutters, and combined curb-and-gutter sections.
Decision Guide
Curb pour ordering decision
For curb and gutter work, the important decision is not just the clean cubic yards. You need the waste-adjusted order, bag fallback, and a quick check on whether the run is still realistic without delivery.
Ready-mix is the safer default
Price the full curb run with waste before you decide how to buy the concrete.
Long curb runs punish bag mixing fast, especially once the gutter section is included.
Before you order
- Gutter width can change the total order more than expected.
- The waste-adjusted run is the real buying number.
- Long curb runs make bag logistics ugly fast.
Next steps
- Confirm curb, gutter, and run length before ordering.
- Use the waste-adjusted yards when pricing the pour.
- Group multiple runs into one order if they pour together.
Common mistakes
- Forgetting the gutter pan when estimating the order.
- Using clean yardage instead of the waste-adjusted total.
- Planning bags for a long run without checking labor.
Use this guide for planning only. Site access, forming method, and local supplier fees can change the final curb order.
1. Enter Dimensions
Curb and gutter cross-section measurements.
Curb Section
Gutter Section (Optional)
2. Results
Your curb and gutter concrete calculation.
Enter curb dimensions
Fill in the measurements to calculate concrete volume.
About Concrete Curbs & Gutters
Concrete curbs and gutters are essential for roadways, driveways, parking lots, and landscaping. This calculator helps you estimate the concrete needed for both standard curbs and combined curb-and-gutter installations.
Types of Concrete Curbs
- Vertical Curb (Barrier): 6×6 or 6×8 inch, prevents vehicles from leaving roadway
- Mountable Curb: 6×4 inch with sloped face, allows vehicles to mount
- Rolled Curb: Rounded profile, common in residential driveways
- Combined Curb & Gutter: Curb with attached gutter pan for drainage
Standard Dimensions
| Type | Curb Size | Gutter | Use Case |
|---|---|---|---|
| Residential | 6" × 6" | 12" × 4" | Driveways, sidewalks |
| Commercial | 8" × 8" | 18" × 6" | Parking lots, roads |
| Highway | 10" × 10" | 24" × 6" | Highways, major roads |