Volume Converter
By Santaji GadepatilinUpdated October 27, 2026
Volume is measured in litres, millilitres, cubic metres, gallons, cubic feet and many cooking units. This converter switches between all of them in one place.
How to use the volume converter
Type a volume in any unit and every other field updates instantly.
Volume formula
1 m³ = 1,000 L 1 US gal = 3.785 L 1 UK gal = 4.546 L 1 ft³ = 28.32 L
Example: a 1,000-litre water tank holds 1 m³, 264 US gallons or 220 UK gallons.
Conversion table
| Litres | US gallons |
|---|---|
| 1 L | 0.264172 US gal |
| 5 L | 1.32086 US gal |
| 10 L | 2.64172 US gal |
| 20 L | 5.28344 US gal |
| 50 L | 13.2086 US gal |
| 100 L | 26.4172 US gal |
| 1,000 L | 264.172 US gal |
| Cubic metres | Cubic feet |
|---|---|
| 0.1 m³ | 3.53147 ft³ |
| 0.5 m³ | 17.6573 ft³ |
| 1 m³ | 35.3147 ft³ |
| 2 m³ | 70.6293 ft³ |
| 5 m³ | 176.573 ft³ |
| 10 m³ | 353.147 ft³ |
US vs UK gallons
They are different. A US gallon is 3.785 litres; a UK (imperial) gallon is 4.546 litres — about 20% larger. Fuel-economy figures in miles per gallon are therefore not directly comparable between the two countries.
Volume conversion table
| Litres | mL | m³ | US gal | UK gal | ft³ |
|---|---|---|---|---|---|
| 0.25 | 250 | 0.00025 | 0.066 | 0.055 | 0.0088 |
| 0.5 | 500 | 0.0005 | 0.132 | 0.110 | 0.0177 |
| 1 | 1,000 | 0.001 | 0.264 | 0.220 | 0.0353 |
| 2 | 2,000 | 0.002 | 0.528 | 0.440 | 0.0706 |
| 5 | 5,000 | 0.005 | 1.321 | 1.100 | 0.1766 |
| 10 | 10,000 | 0.01 | 2.642 | 2.200 | 0.3531 |
| 20 | 20,000 | 0.02 | 5.283 | 4.399 | 0.7063 |
| 50 | 50,000 | 0.05 | 13.209 | 10.998 | 1.7657 |
| 100 | 100,000 | 0.1 | 26.417 | 21.997 | 3.5315 |
| 1000 | 1,000,000 | 1 | 264.172 | 219.969 | 35.3147 |
Kitchen volumes
| Measure | mL (US) |
|---|---|
| 1 teaspoon | 4.93 |
| 1 tablespoon | 14.79 |
| 1 fluid ounce | 29.57 |
| 1 cup | 236.6 |
| 1 pint (US) | 473.2 |
| 1 quart (US) | 946.4 |
Metric recipes often use a 250 mL cup and a 15 mL tablespoon. See the cooking converter for ingredients by weight.
Cubic measures
- 1 m³ = 1,000 litres
- 1 cm³ = 1 mL
- 1 ft³ = 28.32 litres
- 1 in³ = 16.39 mL
Handy equivalents
- 1 litre = 1,000 cm³ = 1 kg of water (approximately)
- 1 m³ of water weighs about 1 tonne
- 1 barrel of oil = 42 US gallons ≈ 159 litres
Frequently asked questions
How many litres are in a US gallon?
3.78541 litres.
How many litres are in a cubic metre?
1,000 litres.
Is a millilitre the same as a cubic centimetre?
Yes, 1 mL = 1 cm³.
How many litres are in a cubic metre?
1,000 litres.
How many mL are in a cup?
236.6 mL in a US cup; 250 mL in a metric cup.