Topsoil Removal Calculator

This topsoil removal calculator helps you plan the stripping and disposal of topsoil during site preparation. Whether you are preparing a building pad, grading a lot, or clearing land, knowing the volume and weight of topsoil to remove is essential for scheduling trucks and estimating disposal costs.

Removal Workflow

1. Measure: Determine the area to strip and the depth of topsoil (typically 100–300mm)
2. Strip: Remove topsoil with a scraper, grader, or excavator
3. Stockpile or haul: Stockpile on site for reuse, or load onto trucks for disposal
4. Dispose: Transport to landfill, tip site, or sell to landscapers

Volume Calculation

The formula is straightforward: Volume = Area × Strip Depth. This gives you the bank (in-situ) volume — the soil as it sits in the ground. When excavated, soil expands due to swell, so the loose volume (what you actually haul) is larger.

Swell Factor

When topsoil is stripped, it breaks apart and takes up more space than it did in the ground. Typical topsoil (loam) swells about 25%, meaning 10 m³ in the ground becomes 12.5 m³ on the truck. Always use the loose volume for hauling estimates and disposal planning.

Weight Considerations

Topsoil is relatively light compared to clay or rock, with a typical bank density of 1,250 kg/m³. However, wet topsoil can be significantly heavier. For most topsoil removal jobs, volume governs the number of truck trips rather than weight — but it is always worth checking both.