How it works
Cubic feet = Length × Width × (Depth in inches ÷ 12) · Cubic yards = Cubic feet ÷ 27
Compacted road base weighs roughly 1.5 tons per cubic yard.
Example
A 27 ft × 1 ft strip at 12 in deep is 1 cubic yard (~1.5 tons).
Road Base Calculator
Estimate how much road base (crushed aggregate) you need for a driveway or paver sub-base.
- Free
- No sign-up
- Instant results
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Frequently asked questions
- How deep should road base be?
- Commonly 4 inches for a paver patio sub-base and 6–8 inches for a driveway — check your project's requirements.