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 → m³The 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 m³ | 22.0 UK gal |
| 0.25 m³ | 55.0 UK gal |
| 0.5 m³ | 110.0 UK gal |
| 1 m³ | 220.0 UK gal |
| 2 m³ | 440.0 UK gal |
| 5 m³ | 1,100 UK gal |
Why convert cubic metres to UK gallons?
m³ to UK gal is useful when you:
- Convert modern metric tank specs into imperial gallons for comparison.
- Check rainwater storage, oil tanks or fuel bunkers against older data.
- Work with civil or mechanical designs that mix metric and imperial units.
- Explain storage capacity to users who think in gallons rather than m³.
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.