Volume Converter
The Volume Converter helps you convert liquid measurements between millilitres, litres and US gallons. It is useful for cooking, shopping, product labels, packaging, fuel amounts, school work and daily measurement checks.
How to use this volume converter
Enter a value in any one field and the converter will show the matching values in the other units. You can start with millilitres, litres, or US gallons.
Important unit note
This tool uses the US gallon conversion. One US gallon is 3.785411784 litres.
Enter a value in any field to convert it into millilitres, litres and US gallons.
Common volume units
Millilitres are useful for small liquid amounts such as medicine, drinks, sauces and product labels. Litres are used for larger bottles, water, fuel and household liquids. US gallons are often used for larger liquid quantities in some countries.
Quick reference
| Unit | Common use | Basic relationship |
|---|---|---|
| Millilitre | Small liquid quantities | 1,000 millilitres = 1 litre |
| Litre | Bottles, fuel and household liquids | 1 litre = 0.264172 US gallons |
| US gallon | Larger liquid quantities | 1 US gallon = 3.785411784 litres |
When this converter is useful
Use this page when comparing bottle sizes, reading liquid labels, converting a cooking amount, checking fuel figures, preparing school work, or understanding a measurement written in another unit.
Frequently asked questions
Does this use US gallons?
Yes. The gallon field uses the US gallon value.
How many millilitres are in one litre?
One litre equals 1,000 millilitres.
Can I convert gallons to litres?
Yes. Enter the gallon value and the litre value will appear.