Gravel volume, weight and bags

Gravel volume, weight and bags: calculate a transparent estimate from the values and assumptions you provide.

Gravel volume, weight and bags: calculate a transparent estimate from the values and assumptions you provide.

Both dots and commas are accepted as decimal separators.

Your inputs stay in your browser. Displayed results are rounded to a maximum of 12 significant digits.

Method and assumptions

Method version 1.0.0 · Updated

Calculate

Formula: V = area × depth; mass = V × bulk density

Gravel volume, weight and bags: calculate a transparent estimate from the values and assumptions you provide.

area
Area to cover (m²)
depth
Depth (m)
density
Bulk density (t/m³)
bagKg
Mass per bag (kg)

Bulk density varies by material and moisture; confirm it with the supplier.

Calculate with code

These short examples use the same inputs and core calculation as this tool. Adapt validation and formatting to your application.

JavaScript
const volumeM3 = 20 * 0.08; const tonnes = volumeM3 * 1.6; // 1.6 m³, 2.56 t