Earthworks Estimator
Summarise cut/fill balance, reusable cut, borrow deficit and loose export using an explicit reuse percentage and loose-volume factor.
Use the Earthworks Estimator
Summarise cut/fill balance, reusable cut, borrow deficit and loose export using an explicit reuse percentage and loose-volume factor.
Calculations happen locally in your browser. ToolLott does not send these inputs to a server for this tool.
Preliminary planning or arithmetic calculation only. Confirm project inputs, units, operating assumptions and applicable requirements before procurement, construction or operational decisions.
How to use it
Replace the worked-example values with actual project data. Review the intermediate quantities and visible assumptions before using the result elsewhere.
How the Earthworks Estimator works
Summarise cut/fill balance, reusable cut, borrow deficit and loose export using an explicit reuse percentage and loose-volume factor. The methodology below exposes the production equation, a QA-verified worked example and the boundary between this screen and detailed design.
Calculation breakdown
ToolLott will explain the current inputs and displayed result here.
Cut/fill balance with reuse and loose-volume factor
The production engine evaluates balance = cut - fill; borrow/export depend on reusable cut; loose export = export_in-situ x loose_factor. It begins by calculate in-situ cut minus fill., then apply reusable-cut percentage and allocate reusable material to fill., and finally calculate borrow deficit/export surplus and convert exported in-situ volume to loose volume. This keeps the calculation auditable instead of hiding design assumptions behind a single number.
balance = cut - fill; borrow/export depend on reusable cut; loose export = export_in-situ x loose_factorToolLott evaluates the relationship using the entered units and full numeric precision before display rounding.
| Symbol / input | Meaning | Unit |
|---|---|---|
cut | Cut volume in situ (m3) | user input |
fill | Fill requirement in situ (m3) | user input |
reuse | Reusable cut (%) | user input |
looseFactor | Loose-volume factor | user input |
Step-by-step method
- Calculate in-situ cut minus fill.
- Apply reusable-cut percentage and allocate reusable material to fill.
- Calculate borrow deficit/export surplus and convert exported in-situ volume to loose volume.
Worked example
Chloe, a project engineer, has 18,500 m³ of cut, 15,200 m³ of fill and a 1.15 loose-volume factor and needs to see likely haul/export implications.
Example inputs
- Cut volume in situ (m3): 18500
- Fill requirement in situ (m3): 15200
- Reusable cut (%): 100
- Loose-volume factor: 1.15
Calculation / processing
Balance = 18,500 - 15,200 = 3,300 m³ surplus.At 100% reuse, 15,200 m³ of cut can satisfy all fill, leaving 3,300 m³ in-situ export.Loose export = 3,300 x 1.15 = 3,795 m³.
Use the result as a screening or quantity-planning value and compare it with the project criteria, manufacturer data and applicable engineering requirements before making a design or procurement decision.
Assumptions
- The entered values are representative of the condition being screened and use the units shown on the page.
- The equation models only the stated relationship; omitted system effects are not silently estimated.
Limitations
- This page is not engineering certification and does not replace applicable standards, design loads, manufacturer data, site investigation or competent professional review.
- Results can change materially when real geometry, losses, transients, material properties, duty cycles, safety factors or regulatory criteria differ from the simplified inputs.
Common questions
Is this a final engineering design?
No. It is a transparent screening calculation using the entered assumptions and the stated equation.
Why does the page show assumptions and limitations?
Engineering formulas are only valid within their modelling assumptions; exposing them helps users decide what additional design checks are required.
Should I use the rounded displayed value in later design work?
Use suitable calculation precision and the governing project/standard requirements rather than relying on display rounding alone.
Methodology sources
This page uses basic mathematical or ToolLott implementation logic that does not require an external factual source. The worked result is still tied to the production tool and QA example.
Related ToolLott tools
A realistic way Chloe could use this tool
Chloe is a project engineer.
Chloe has 18,500 m³ of cut, 15,200 m³ of fill and a 1.15 loose-volume factor and needs to see likely haul/export implications.
For this case the entered data is cut = 18500; fill = 15200; reuse = 100; loose factor = 1.15. The page evaluates that exact set and reports In-situ cut/fill balance: 3,300 m3 surplus; the example therefore demonstrates the method with real values rather than describing a vague before-and-after story.
This produces In-situ cut/fill balance: 3,300 m3 surplus. In practical terms, Chloe can see likely haul/export implications using a result tied to the shown inputs instead of an unexplained recommendation. The page also keeps this limitation explicit: Preliminary screening/planning calculation only.
Fictional scenario using realistic example data. For Ready tools, the worked result is tied to the tested example shown in the tool. Replace the figures with your own inputs and independently verify important professional, financial, legal, health or safety decisions.
What this tool is for
Use it to summarise cut/fill balance, reusable cut, borrow deficit and loose export using an explicit reuse percentage and loose-volume factor.
It sits within ToolLott’s Mining collection, where you can also estimate camp population, conveyor power, dewatering, earthworks, fuel consumption, haul-road inputs, tank sizing and ventilation.