Tools / Volume calculator (m³ & litres)
Volume calculator: cubic metres & litres
Choose the shape and enter the measurements in metres. You get the volume in m³ and litres (1 m³ = 1,000 l).
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🔒 Runs entirely in your browser – nothing you enter is uploaded or stored.
How to use it
- Choose the shape.
- Enter the measurements in metres (decimals allowed).
- Read the volume in m³, litres and cm³.
Your inputs live only in the link, not on our server.
Last checked: October 2026. Found a mistake? Use the form below – we fix confirmed errors and update the date.
Frequently asked questions
How do I calculate cubic metres?
Length × width × height in metres: a room 4 m × 3 m × 2.5 m has 30 m³.
How many litres is one cubic metre?
1 m³ = 1,000 litres; 1 litre = 1 dm³ = 1,000 cm³.