UK gallons to millilitres – convert UK gal to mL
Convert UK gallons to millilitres (gal UK to mL) for fuel, brewing, heating oil, water butts and fluid storage. This page opens the main volume converter with gal UK → mL pre-selected.
Open the interactive UK gal → mL converter:
Use main converter (UK gal → mL) or switch to mL → UK galYou can also convert litres, cubic metres, US gallons and millilitres on the main volume tool.
Quick reference: UK gal to mL
One UK gallon is exactly 4,546.09 mL, so: mL = gal UK × 4,546.09. Examples:
| Volume (UK gal) | Volume (mL) |
|---|---|
| 0.25 UK gal | 1,136.52 mL |
| 0.5 UK gal | 2,273.05 mL |
| 1 UK gal | 4,546.09 mL |
| 2 UK gal | 9,092.18 mL |
| 5 UK gal | 22,730.45 mL |
Why convert UK gallons to millilitres?
UK gallons to millilitres is handy when you:
- Convert tank or cylinder capacities into small metric units.
- Scale imperial recipes or brewing volumes into mL.
- Compare UK gallon fuel or oil amounts with metric labels.
- Prepare dual-unit technical or marketing documents.
Other volume converters on this site
This page uses the imperial/UK gallon (≈4.546 L). US gallons are smaller and have their own converter.
Page last updated: 4 December 2025.