Pothole Repair Calculator
Add multiple rectangular or circular potholes to estimate prepared volume, repair material weight, and whole bags.
Pothole measurements
Use average depth after removing loose material.
Repair material estimate
Complete at least one pothole plus positive density and bag weight.
Result assumptions
The estimate assumes a regular prepared cavity and uniform product density. Hidden undermining, loose edges, water, grade changes, and compaction loss can increase material use.
Formulas
Circle volume = π × (diameter ÷ 2)² × average depth
Weight equals volume × product density. Whole bags equal weight divided by bag net weight, rounded upward.
Worked example
A prepared 24 × 18 × 3 in rectangular cavity contains 1,296 in³ or 0.75 ft³. At 130 lb/ft³ it needs about 97.5 lb, which rounds to two 50-lb bags.
Reference examples at 130 lb/ft³
| Prepared cavity | Volume | Approx. weight |
|---|---|---|
| 12 × 12 × 2 in | 0.167 ft³ | 21.7 lb |
| 24 × 18 × 3 in | 0.750 ft³ | 97.5 lb |
| 24 in diameter × 3 in | 0.785 ft³ | 102.1 lb |
Common mistakes
- Measuring only the visible opening before removing loose material.
- Using bag weight as if it were guaranteed volume yield.
- Patching over water, soft support, or widespread fatigue cracking without correcting the cause.
Confirm before repair
- product suitability, density or published yield, lift depth, and compaction instructions;
- prepared limits, sound edges, drainage, support condition, and traffic reopening;
- personal protective equipment and manufacturer safety instructions.
Source and related tools
FHWA's pothole repair manual of practice describes material selection and repair procedures for asphalt-surfaced pavements. Read the cold patch guide, compare a larger area in the driveway quantity calculator, return to the core asphalt calculator, and use the repair-versus-reconstruction guide.