m³ to UK gallons – convert cubic metres to imperial gallons

Convert cubic metres to UK gallons (m³ to imperial gallons) to express metric tank sizes, cisterns and storage volumes in familiar UK gallons.

Open the interactive m³ → UK gallons converter:

Use main converter (m³ → UK gal) or switch to UK gal → m³

The volume converter also supports litres, millilitres, US gallons, cubic feet and more.

Quick reference: m³ to UK gallons

One cubic metre equals about 219.97 UK gallons. So: UK gal = m³ × 219.969. Examples:

Volume (m³) Volume (UK gal, approx.)
0.1 m³22.0 UK gal
0.25 m³55.0 UK gal
0.5 m³110.0 UK gal
1 m³220.0 UK gal
2 m³440.0 UK gal
5 m³1,100 UK gal

Why convert cubic metres to UK gallons?

m³ to UK gal is useful when you:

Other volume converters on this site

This page uses the UK (imperial) gallon. US gallons are smaller and have their own separate converters.

Page last updated: 4 December 2025.