DIY & materials
Excavation spoil and loads Calculator
Estimate loosened spoil, weight, truck loads and disposal cost. This free excavation spoil and loads calculator shows the calculation and its assumptions so you can compare your own figures.
Your results
Estimate loosened spoil, weight, truck loads and disposal cost.
Calculated outcomes
- In Situ Volume M3
- 25 m³
- Loose Volume M3
- 31.25 m³
- Spoil Tonnes
- 43.75 t
Assumptions and estimates
- Method: Loose volume = in-situ volume × swell factor. Loads meet both volume and weight limits, rounded up.
- Density and swell depend on soil and moisture. Excludes excavation support, hazardous material, permits and classified waste acceptance charges.
Useful next steps
- Use Compare options to test an alternative side by side.
- Copy, print or download a record of this calculation when you need one.
Reports open your email app addressed to s@s1.ie with the public page address only. Your inputs are never added.
How the excavation spoil and loads calculation works
Loose volume = in-situ volume × swell factor. Loads meet both volume and weight limits, rounded up.
Density and swell depend on soil and moisture. Excludes excavation support, hazardous material, permits and classified waste acceptance charges.
Using this calculator
- Enter your own figures in the labelled inputs. Keep the currencies, units and time periods consistent.
- Choose any applicable rate profile, pattern or assumption shown for this tool. Open additional inputs when relevant.
- Review truck loads and disposal cost, then read the stated assumptions and eligibility conditions before using the result.
Worked example
This is a static example using illustrative inputs, not facts about you or today’s date. The displayed eligibility selections and assumptions apply only to this example.
See example inputs
- Excavation length (m)
- 10
- Excavation width (m)
- 5
- Excavation depth (m)
- 0.5
- Volume swell after excavation (%)
- 25
- Truck loose volume limit (m³)
- 10
- Truck payload limit (tonnes)
- 18
- Loose spoil density (tonnes/m³)
- 1.4
- Disposal price (€/tonne)
- 20
- Truck Loads
- 4
- Disposal Cost
- €875.00