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Excavated Soil Bulking Calculator

Estimate loose volume after excavation from an entered swell factor.

Editable waste and coverage assumptionsCheck supplier specifications

Project measurements

Runs on your device

MATERIAL ESTIMATE

Your result

Let’s calculate.

Use the Calculate button to see your result.

Review the method below for assumptions and conventions.

How to use this tool

  1. Enter in-place volume, volume increase.
  2. Select Calculate to view the result.
  3. Check the method and assumptions below before using the result.

The method, explained

Loose volume = in-place volume × (1 + swell/100).

A WORKED EXAMPLE

Using in-place volume = 10 m³, volume increase = 25 %, the result is 12.5 m³. Change these example inputs to match your task; use the method above to check each step.

What to keep in mind

A material-quantity estimate, not a structural design or building-code check. Confirm site measurements, supplier coverage and waste before ordering.

Common questions

Which inputs does this calculation need?

Estimate loose volume after excavation from an entered swell factor. Enter in-place volume in m³, volume increase in %. The filled example is editable and is not a saved personal record.

How should I interpret the result?

A material-quantity estimate, not a structural design or building-code check. Confirm site measurements, supplier coverage and waste before ordering.

Methodology maintained by ClarityKit. How these tools are built and checked.