Gravel Calculator USA 2026
Cubic yards = area × depth (in ÷ 12) ÷ 27, converted to tons using a compacted density of roughly 1.4 tons per cubic yard.
Gravel Calculator — the quick answer
Cubic yards = area × depth (in ÷ 12) ÷ 27, converted to tons using a compacted density of roughly 1.4 tons per cubic yard.
Gravel Calculator — instant results
Show calculation steps
- Volume = 40 × 10 × (4/12) = 133.33 ft³
- Cubic yards = 133.33 ÷ 27 × 1.10 = 5.43
- Tons ≈ 5.43 × 1.4 = 7.60
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What the Gravel Calculator works out for your gravel job
Cubic yards = area × depth (in ÷ 12) ÷ 27, converted to tons using a compacted density of roughly 1.4 tons per cubic yard.
Enter Length, Width and Depth and the gravel calculator returns the quantities you need to order instantly — no signup, no spreadsheet and no install. Every figure updates as you type so you can test two or three gravel scenarios before you commit to an order or a bid.
Gravel numbers this page gives you
The output is written for a real supply run: quantities and figures you can hand to a supplier or drop straight into a bid for gravel work.
- A planning figure for gravel, with the waste or contingency allowance stated.
How to estimate gravel step by step
The math behind this page is Cubic yards = area × depth (in ÷ 12) ÷ 27, converted to tons using a compacted density of roughly 1.4 tons per cubic yard.. Nothing is hidden — the formula, the assumptions and the waste allowance are all printed on the page so you can re-check the result by hand.
Worked example: 40 × 10 ft × 4" = 133 ft³ ÷ 27 = 4.94 yd³ ≈ 6.9 tons.
- Measure the gravel area or run and write down Length, Width and Depth.
- Enter the figures above and read the gravel result.
- Add the recommended waste allowance before you order.
- Save or download the estimate so your supplier and your crew work from the same numbers.
Gravel searches this page answers
Homeowners, DIYers and contractors reach this gravel page looking for the same handful of answers. Each of these is answered above with the formula shown:
- Gravel calculator
- How much gravel do I need
- Gravel estimator online
- Gravel quantity takeoff calculator
- Free gravel calculator app USA
- Gravel material calculator 2026
Before you order gravel: quick checklist
- Re-measure the gravel area once before ordering — a second check is cheaper than a second delivery.
- Keep the stated waste allowance in the order; cuts and breakage are normal on gravel work.
- Confirm coverage or unit size with your actual supplier — gravel pack sizes vary by brand.
More gravel planning tools
Pair this gravel estimate with the rest of BuildMate: a full calculator index, an AI planner that turns a plain-English description into a materials list, and step-by-step guides for the trade work itself.
Targeted searches: gravel calculator · how much gravel do I need · gravel estimator online · gravel quantity takeoff calculator · free gravel calculator app USA · gravel material calculator 2026
How the crushed stone and gravel math works
Gravel Calculator — frequently asked questions
What depth for a driveway?
4" of #57 stone over 4" of compacted road base.
How much does a yard weigh?
About 2,800 lb (1.4 tons) for dry, clean crushed stone.
How do I use the Gravel Calculator?
Enter Length, Width and Depth. The gravel calculator instantly returns the quantities you need to order, along with the formula and every calculation step so you can verify the result.
How much gravel do I need?
It depends on your measurements, so run the gravel numbers above rather than using a rule of thumb. The calculator applies the standard trade formula plus a stated waste allowance, which is what stops you from coming up short mid-job.
What does the Gravel Calculator include in its result?
It reports the quantities you need to order. The underlying formula is Cubic yards = area × depth (in ÷ 12) ÷ 27, converted to tons using a compacted density of roughly 1.4 tons per cubic yard..
Is the Gravel Calculator free, and does it work on mobile?
Yes — it's free, needs no account, and runs in the browser on phone, tablet and desktop. Nothing is installed and your saved gravel estimates stay on your own device.
Planning estimate only, produced from the formula shown above with documented assumptions. Always confirm quantities with your supplier or contractor before ordering.