Gravel Material Calculator

Calculate the exact amount of gravel you need in cubic yards, tons, and cubic feet instantly and free.

  • Free
  • No sign-up
  • Instant results

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How to use it

  1. Enter length in feet.
  2. Enter width in feet.
  3. Enter depth in inches.
  4. Click Calculate to see results.

What this tool does

It turns the three dimensions of your project—length, width and depth—into three practical measures: cubic yards (the standard ordering unit), tons (weight for delivery quotes) and cubic feet (easy visual reference).

Why the results matter

Knowing cubic yards lets you order the right amount from a supplier; tons help you compare freight costs; cubic feet let you picture how deep a layer will sit in your space.

How to read the output

  • Cubic yards – divide cubic feet by 27 (the number of cubic feet in a cubic yard).
  • Tons – multiply cubic yards by 1.4 (the built‑in weight factor).
  • Cubic feet – the raw volume of your trench or bed. Use these numbers to avoid over‑ordering or costly shortfalls.

Pro tips

  • Add 5‑10% extra for compaction and spillage.
  • Round up to the nearest 0.1 yd³ for ordering simplicity.
  • Order gravel by the ton if the supplier quotes weight‑based pricing.
  • Double‑check depth conversion: 12 in = 1 ft before entering.

Real-life examples

  • A homeowner laying a 4 ft × 8 ft patio with a 2‑inch gravel base.
  • A landscaper estimating material for a 10 ft × 12 ft garden path, 3 in deep.
  • A contractor preparing a 20 ft × 30 ft driveway base, 6 in deep, to get a delivery quote.

Case study

Sam entered a 12 ft × 15 ft area with a 4‑inch depth, got 2.22 cubic yards (≈3.1 tons) and ordered exactly that amount, saving $150 on excess material and avoiding a costly shortfall.

Frequently asked questions

How do I convert inches to feet for depth?
Divide the inch value by 12; 6 in becomes 0.5 ft.
Why is the weight per cubic yard 1.4 tons?
That is the industry‑standard estimate for typical crushed stone gravel.
Should I round up or down?
Always round up to ensure you have enough material.
Can I use the calculator for sand?
Yes, but use the sand‑specific weight factor if you have it; the default 1.4 tons is for gravel.
Is the calculator free to use?
Yes, it’s instant, free and requires no sign‑up.