Use this construction calculation for preliminary quantity, geometry, material, load, or coverage planning when dimensions and units have been measured consistently.

In-place bank volume (m³)

Required number input.

Swell (%)

Required number input.

Convert in-place excavated volume to loose volume with a specified swell percentage. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Loose volume (m³)

The resulting loose volume returned as a number.

• A quantity estimate or simplified engineering formula is not a building-code check, stamped design, manufacturer approval, or site inspection. Material properties, tolerances, waste, moisture, workmanship, loads, local conditions, and code requirements can change the result.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Verify dimensions on site, use current product data and local code requirements, include an explicit waste or safety allowance where appropriate, and obtain qualified structural, electrical, plumbing, or geotechnical review when required.

• Compaction Factor Adjusted Volume

  Convert loose soil volume to compacted volume using a measured compacted-to-loose volume ratio.

• Concrete Order With Waste

  Calculate concrete order volume by adding a specified waste percentage to net placed volume; this is a purchasing allowance, not shrinkage prediction.

• Circuit Load Amps

  Convert electrical load power to current for a DC circuit or AC load with unity power factor; does not size a breaker.