Volume Converter — Litres, Gallons, m³
Convert volumes — water tanks, fuel, cooking measures — between metric and US/UK units.
Updated
Formula
1 US gallon = 3.785 L
1 UK gallon = 4.546 L
1 m³ = 1,000 L
US and UK (imperial) gallons are different sizes; choose the right one.
Examples
1,000 L tank to US gallons
1,000 Litre = 264.172052 US gallon
500 UK gallons to litres
500 Imperial (UK) gallon = 2,273.045 Litre
Reference table
| Unit | In litres |
|---|---|
| Millilitre (ml) | 0.001 |
| Litre (L) | 1 |
| Cubic metre (m³) | 1,000 |
| US gallon | 3.78541178 |
| Imperial (UK) gallon | 4.54609 |
| Cubic foot (cu ft) | 28.31684659 |
| Cup (240 ml) | 0.24 |
| Tablespoon (15 ml) | 0.015 |
| Teaspoon (5 ml) | 0.005 |
Important information
- Overhead water tanks in Pakistan are often sold in gallons — usually imperial (UK) gallons. A '500 gallon' tank is about 2,273 L if imperial or 1,893 L if US.
Frequently asked questions
How many litres in a gallon?
3.785 L in a US gallon; 4.546 L in an imperial (UK) gallon.
How many litres in a cubic metre?
1,000 litres.
How many ml in a cup?
This converter uses a 240 ml cup.
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