Unit Converter category
Volume Unit Converter
Volume covers concrete pours, excavation and fill, tank and cistern capacity, and the water and air quantities behind building services. Solid volumes and liquid capacities are converted here on a single litre base.
Units covered
Cubic units (cubic centimetre, cubic metre, cubic inch, cubic foot) describe solids and spaces. Capacity units (millilitre, litre, US gallon, imperial gallon) describe fluids. They interchange freely: one cubic metre is exactly 1,000 litres.
- MillilitremL
- LitreL
- Cubic centimetrecm³
- Cubic metrem³
- Cubic inchin³
- Cubic footft³
- US gallonUS gal
- Imperial gallonimp gal
Where it is used
- Ordering ready-mix concrete in cubic metres from a take-off measured in cubic feet
- Sizing a rainwater harvesting tank quoted in litres against a demand figure in gallons
- Converting excavation and spoil volumes between metric and imperial for a haulage estimate
- Checking duct or plenum volumes when air-change calculations mix unit systems
Volume conversions (56)
Each conversion opens the live converter with that pair preselected, plus the exact factor, worked examples and answers to common questions.
From Milliliter (mL)
From Liter (L)
From Cubic Centimeter (cm³)
From Cubic Meter (m³)
From Cubic Inch (in³)
From Cubic Foot (ft³)
From US Gallon (US gal)
US and imperial gallons are not the same
A US gallon is 3.785411784 litres; an imperial gallon is 4.54609 litres, about twenty percent larger. Tank and pump specifications rarely say which one they mean, so confirm the origin of the document before converting.
Order concrete with a waste allowance
Convert the net take-off first, then add the wastage allowance separately. Folding waste into the conversion hides it from anyone checking the figure later, and it makes reconciling delivered against placed volume harder.
Related converter categories
- AreaVolume is area carried through a depth
- Mass and WeightVolume times density gives mass
- LengthThe linear dimensions behind every volume