Quick construction calculators for site teams, planners and estimators.
Simple construction calculators for planners, site teams, estimators and project controls. No sign-up, no spreadsheet faff — just useful checks for concrete, earthworks, drainage, dates, productivity, commercial costs and contractor income.
Popular tools
- Concrete volume and waste allowance
- Excavation volume, bulking and lorry loads
- Working days and programme durations
- Productivity, earned value and cost checks
Built for practical construction checks
These tools are designed for quick estimating, reporting and sense-checking. They are not a replacement for drawings, specifications, commercial advice or programme software, but they are handy when you need a fast answer.
Featured calculators
See all calculators →Concrete Volume Calculator
Estimate concrete volume from length, width and depth, with an optional waste allowance.
EarthworksExcavation Volume Calculator
Calculate in-situ excavation volume, loose bulked volume, approximate tonnes and lorry loads.
EarthworksTrench Excavation Calculator
Estimate trench excavation quantities from trench length, width and depth.
Concrete & MaterialsTonnes to Cubic Metres Calculator
Convert tonnes to cubic metres using a material density.
Concrete & MaterialsCubic Metres to Tonnes Calculator
Convert cubic metres to tonnes using a material density.
EarthworksLorry Loads Calculator
Estimate the number of lorry loads needed for a quantity of material.
EarthworksBulking Factor Calculator
Convert in-situ material volume to loose volume after excavation.
EarthworksShrinkage / Compaction Calculator
Estimate compacted volume after applying a shrinkage or compaction percentage.
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Need a quick construction or commercial check?
Use the calculators for estimating, reporting, planning, cost checks and everyday project controls sense-checks.