Crusher Run Calculator
A crusher run calculator estimates dense-graded aggregate from area and compacted depth. This calculator uses a generic density of 135 lb/ft³, equivalent to 1.8225 US short tons per cubic yard. Enter the base dimensions and an allowance to see volume and estimated tonnage.
Crusher run tonnage
40.5tons
- Area
- 1,200.00 SF
- Volume before allowance
- 22.22 CY
Formula: tons = length ft × width ft × (depth in ÷ 12) × 135 lb/ft³ ÷ 2,000 lb, then + waste %
Uses a generic density from the site’s material table. Confirm a product-specific value with the supplier.
How the calculation works
Multiply length and width by depth converted from inches to feet. Divide the resulting cubic feet by 27 for cubic yards, or multiply by 135 and divide by 2,000 for short tons. Only the tonnage includes the entered allowance.
A 100-foot by 12-foot base at 6 inches compacted depth contains 600 cubic feet, or 22.22 cubic yards. At the density used here, that is 40.5 tons before allowance.
Use the total compacted thickness required by the section. If it is placed in multiple lifts, do not multiply the full-depth quantity by the number of lifts. Calculate separately when material type, width, or total thickness changes.
Crusher run is a supplier term, and the specified gradation may differ between projects. The generic density is not a DOT product certification. Confirm the material designation and density with the specification and supplier; use a separate calculation if a different density applies.
Reference values
| Quantity | Value | Basis |
|---|---|---|
| Crusher run / dense-graded aggregate | 135 lb/ft³ | generic unit weight |
| Tons per compacted cubic yard | ≈ 1.82 | 135 × 27 ÷ 2,000 |
| Clean crushed stone, for contrast | 100 lb/ft³ | generic unit weight |
| Cubic feet per cubic yard | 27 | standard conversion |
Frequently asked questions
How many tons per cubic yard of crusher run?
At 135 lb/ft³, one cubic yard is 1.8225 short tons. This is the calculator’s generic value, not a guaranteed weight for every product.
Does the calculator choose the base depth?
No. Enter compacted depth from the project section or design. The default is an example input.
Does more than one lift increase the total quantity?
Not if the total finished thickness stays the same. Split the quantity by lift for planning without counting the full section more than once.
Can I use it for clean stone?
Use the crushed stone calculator or a density appropriate to that product. This widget uses the dense-graded aggregate value.