FORMULA
How the calculation works
Volume = area × depth · Tons = cubic yards × density × (1 + waste %)
Measure the area and average depth. Adjust density to match the gravel product supplied by your vendor.
CONSTRUCTION & MATERIALS / FREE ONLINE TOOL
Gravel Calculator
Estimate gravel volume, weight, bags and total material cost for a rectangular or circular area.
INPUT
LOCAL CALCULATIONEnter your values
RESULT
FORMULA v1.0.0Your calculation
ResultReady
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EXAMPLE
Worked example
A 20 ft × 10 ft area at 3 in depth requires about 1.85 yd³ before waste.
Formula reviewed July 30, 2026 · Version 1.0.0
FAQ
Frequently asked questions
Is this calculator free?
Yes. It is free to use and does not require an account.
Are my values uploaded?
No. This calculation runs locally in your browser.
SOURCE & LIMITS
Methodology
Geometric volume formulas. Default density is an editable estimate, not a product specification.
Results are estimates. Confirm measurements, product specifications and professional requirements before making critical decisions.