Rex says
Everyday utility math — the kind you'd otherwise pull up four browser tabs for. I keep it to one clean answer.
Try a scenario
Click to load — tweak from there.Inputs
Result
Gravel needed (tons)
6.91
Cubic yards
4.94
Estimated cost
$311
Area covered (sq ft)
400
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One click, a permanent link with your numbers baked in.
How to use this
- 1Enter length (ft).
- 2Enter width (ft).
- 3Enter depth (in).
- 4Enter density (tons/yd³).
- 5Enter price per ton ($).
- 6Read your gravel needed (tons) on the right — it updates as you type.
- 7Hit Share to keep the scenario or send it to someone.
About this calculator
Gravel is sold by the ton or the cubic yard depending on the supplier. Crushed stone runs roughly 1.4 tons per cubic yard, so this converts both ways and prices the load.
Worked example
Using the values the calculator loads with:
Inputs
- Length: 40 ft
- Width: 10 ft
- Depth: 4 in
- Density: 1.4 tons/yd³
- Price per ton: 45 $
Results
- Gravel needed (tons): 6.91
- Cubic yards: 4.94
- Estimated cost: $311.11
- Area covered (sq ft): 400
What each field means
Inputs
- Length (ft)
- The length used in the calculation, measured in ft. Starts at 40 ft so you have a working example on load.
- Width (ft)
- The width used in the calculation, measured in ft. Starts at 10 ft so you have a working example on load.
- Depth (in)
- The depth used in the calculation, measured in in. Starts at 4 in so you have a working example on load.
- Density (tons/yd³)
- The density used in the calculation, measured in tons/yd³. Starts at 1.4 tons/yd³ so you have a working example on load. Accepted range: 0.8–2.2 tons/yd³.
- Price per ton ($)
- The price per ton used in the calculation, measured in $. Starts at 45 $ so you have a working example on load.
Results
- Gravel needed (tons)
- Returned as a decimal number and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Cubic yards
- Returned as a decimal number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Estimated cost
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Area covered (sq ft)
- Returned as a whole number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
How does the gravel calculator work?
Gravel is sold by the ton or the cubic yard depending on the supplier. Crushed stone runs roughly 1.4 tons per cubic yard, so this converts both ways and prices the load. The underlying maths is: Volume (yd³) = Area × Depth (ft) ÷ 27. Tons = Volume × density.
What do I need to enter?
5 values: length, width, depth, density, and price per ton. Each field starts with a sensible default, so you can change one number at a time and watch the result move.
What does the gravel needed (tons) result mean?
It is returned as a decimal number and updates live as you edit the inputs, so you can compare two or three versions of a scenario in a few seconds.
Is this calculator free, and do I need an account?
Yes, it's free, and no account is required. Nothing you type is stored on our servers — the maths runs entirely in your browser.
How accurate is the result?
It applies the standard formula exactly, so the arithmetic is precise. Estimates assume standard, average conditions — local rules, pricing, and materials vary.
Who is this tool for?
It's built for anyone doing everyday planning maths — a quick estimate that would otherwise need four browser tabs and a calculator app.
Accuracy and limitations
- Estimates assume standard, average conditions — local rules, pricing, and materials vary.
- Results are rounded for readability; add a buffer before ordering, booking, or committing.
- Double-check anything with a real cost attached against a local quote.
Related tools
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). Gravel Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/gravel
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/gravel" target="_blank" rel="noopener">Gravel Calculator — RevenueLab</a> (2026).</p>
Source: [Gravel Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/gravel) (2026).