Free · Driveway calculators 🚧

Driveway Gravel Volume, Mass & Cost Calculator

Estimate gravel quantity and material spending for a uniform rectangular layer.

  • Formula & worked example
  • Private in your browser
  • No signup
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Calculator inputs

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How to use this calculator

  1. Enter the known values in the units shown. Results update as you type.
  2. Edit a calculated value to solve backwards, or lock a value to hold it fixed.
  3. Use the worked example to check the method. Reset restores the starting fields.

Private by default

Inputs and results stay in this browser tab. Bookify does not upload or store the values you enter.

Formula and method

A 10 × 3 meter driveway layer at 10 centimeters deep requires 3 m³. At 1.5 tonnes/m³ it weighs 4.5 tonnes; at 40 per m³, material costs 120.

Gravel volume = length × width × depth; mass = volume × density; cost = volume × unit price

Worked example

Enter these known values and leave the other values blank.

Length
10 m
Width
3 m
Depth
10 cm
Crushed stone density
1.5 t / m³
Material price
40 USD / m³
Total crushed stone
3 m³
Material weight
4.5 t
Material cost
120 USD

Assumptions and limitations

  • Only the geometric layer and entered material price are included. Density, settlement, delivery charges and ordering allowances should come from the project and supplier information.
  • Use consistent units and project-specific dimensions, density and prices. This geometric estimate does not add quantities that are absent from the formula.

Common questions

Does the estimate include delivery and compaction?

Only the geometric layer and entered material price are included. Density, settlement, delivery charges and ordering allowances should come from the project and supplier information.

References

The calculation equations, inverse formulas, units, and input rules were imported from this source. Bookify provides the interface and equation solver.

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