Gravel Calculator USA 2026
Estimate cubic yards and tons of gravel for driveways, paths, drainage or under paver bases.
Gravel Calculator USA 2026 — the quick answer
Estimate cubic yards and tons of gravel for driveways, paths, drainage or under paver bases.
| Formula | Yards = (L × W × Depth/12) ÷ 27 → Tons = Yards × 1.4 |
|---|---|
| Category | Landscaping |
| Cost basis | 2026 USA averages (USD) |
Output
Planning estimate
Time to use
Under a minute
Last reviewed
2026
Built for
DIYers & trades
Enter your measurements
Results
Cubic yards (with 10% compaction)
5.43 yd³
Tons
7.60
Coverage
400 sq ft
Calculation steps
- 1.Volume = 40 × 10 × (4/12) = 133.33 ft³
- 2.Cubic yards = 133.33 ÷ 27 × 1.10 = 5.43
- 3.Tons ≈ 5.43 × 1.4 = 7.60
Includes a standard waste allowance. Verify with your supplier before ordering.
What this calculator does
Turns bed dimensions into cubic yards of mulch, soil, gravel or stone, plus recommended depth for the material type.
When to use it
- Filling flower beds, tree rings or gravel paths.
- Topdressing lawns with compost.
- Sizing a French drain or drainage swale.
Common mistakes
- Ordering by bag when bulk-delivery is 40% cheaper for larger jobs.
- Applying mulch too thick — it suffocates roots.
- Forgetting weed fabric under gravel.
Pro tips
- Mulch depth: 2–3" is ideal, never touching trunks.
- 1 cubic yard covers 100 sq ft at 3" deep.
- Order bulk delivery for jobs over 3 yd³.
What the Gravel Calculator works out for your gravel job
Estimate cubic yards and tons of gravel for driveways, paths, drainage or under paver bases.
Enter Length (ft), Width (ft) and Depth (in) and the gravel calculator returns Cubic yards (with 10% compaction), Tons and Coverage 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.
- Cubic yards (with 10% compaction) — recalculated on every input change.
- Tons — recalculated on every input change.
- Coverage — recalculated on every input change.
How to estimate gravel step by step
The math behind this page is Yards = (L × W × Depth/12) ÷ 27 → Tons = Yards × 1.4. 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 (ft), Width (ft) and Depth (in).
- 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
Get 3 Free Quotes
Compare 3 vetted USA pros for your gravel calculator project. Free, no obligation.
Disclaimer: This is a planning estimate produced from the formula shown above. Actual quantities vary with site conditions, layout, offcuts and installer practice. Verify with your supplier or contractor before ordering, and see our methodology.
How it works
- 1Enter length, width and depth (in inches).
- 21 cubic yard of gravel ≈ 1.4 tons.
- 3Order 10% extra for compaction.
Formula
Worked example
40 × 10 ft × 4" = 133 ft³ ÷ 27 = 4.94 yd³ ≈ 6.9 tons.
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 (ft), Width (ft) and Depth (in). The gravel calculator instantly returns Cubic yards (with 10% compaction), Tons and Coverage, 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 Cubic yards (with 10% compaction), Tons and Coverage. The underlying formula is Yards = (L × W × Depth/12) ÷ 27 → Tons = Yards × 1.4.
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.
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