Millilitres to Gallons Converter
Convert millilitres to US gallons — divide by 3,785.41. Results update as you type; exact factors shown.
One millilitre is 0.0003 US gallons — see the exact factor, not a rounded rule of thumb.
How the millilitres to gallons converter works
Volumes convert through the litre (exactly 1 dm³). The US gallon is exactly 3.785411784 L (231 cubic inches); the imperial gallon is exactly 4.54609 L. A US fluid ounce is 29.5735 mL, an imperial fluid ounce 28.4131 mL; a US pint is 16 US fl oz, an imperial pint 20 imperial fl oz.
The UK is metric for most trade and science but keeps miles, pints, stone and mpg (with the imperial gallon) in daily life.
Common volume conversions
| From | To | Units |
|---|---|---|
| 100 mL | 0.0264 US gal | millilitres to US gallons |
| 250 mL | 0.066 US gal | millilitres to US gallons |
| 500 mL | 0.1321 US gal | millilitres to US gallons |
| 1,000 mL | 0.2642 US gal | millilitres to US gallons |
| 1,893 mL | 0.5001 US gal | millilitres to US gallons |
| 2,000 mL | 0.5283 US gal | millilitres to US gallons |
| 3,785 mL | 0.9999 US gal | millilitres to US gallons |
| 5,000 mL | 1.3209 US gal | millilitres to US gallons |
| 10,000 mL | 2.6417 US gal | millilitres to US gallons |
| 20,000 mL | 5.2834 US gal | millilitres to US gallons |
| 50,000 mL | 13.2086 US gal | millilitres to US gallons |
| 100,000 mL | 26.4172 US gal | millilitres to US gallons |
Units in this converter and their exact factors
| Unit | Symbol | One unit in litres |
|---|---|---|
| millilitre | mL | 0.001 litre |
| litre | L | 1 litre |
| cubic metre | m³ | 1,000 litre |
| teaspoon (metric) | tsp | 0.005 litre |
| tablespoon (metric) | tbsp | 0.015 litre |
| cup (metric) | cup | 0.25 litre |
| US fluid ounce | US fl oz | 0.0295735296 litre |
| US cup | US cup | 0.2365882365 litre |
| US pint | US pt | 0.473176473 litre |
| US gallon | US gal | 3.785411784 litre |
| imperial fluid ounce | imp fl oz | 0.0284130625 litre |
| imperial pint | imp pt | 0.56826125 litre |
| imperial gallon | imp gal | 4.54609 litre |
| cubic foot | ft³ | 28.316846592 litre |
FAQFrequently asked questions about volume conversion
How many millilitres in a gallon?
3,785.41 US, or 4,546.09 imperial.
What is 1,000 mL in gallons?
0.264 US gallons.
What is 3,785 mL?
Almost exactly one US gallon.
Which gallon does a recipe mean?
Almost always the US gallon in American recipes. British recipes rarely use gallons at all.
What is a litre in gallons?
0.2642 US, 0.22 imperial.
Where these figures come from
- BIPM — The International System of Units (SI Brochure, 9th edition) — definitions of the base and derived units.
- NIST Special Publication 811 — Guide for the Use of the International System of Units — the exact conversion factors used here.
- National Physical Laboratory (NPL) — United Kingdom's national measurement authority.
Last checked: September 2026. Conversion factors are fixed by definition and do not change with tax years or regulations.