Quick reference table
Common volume conversions
| From | To |
|---|---|
| 1 gal (US) | 3.785411784 L |
| 1 L | 0.2641720524 gal (US) |
| 1 cup (US) | 236.5882365 mL |
| 1 mL | 0.03381402270 fl oz (US) |
| 1 fl oz (US) | 29.57352956 mL |
| 1 gal (UK) | 4.54609 L |
| 1 ft³ | 28.31684659 L |
| 1 m³ | 264.1720524 gal (US) |
How to convert volume
Volume measures how much space something takes up. Liquids and recipes use liters, milliliters, gallons and cups, while storage and shipping use cubic meters and cubic feet. US and UK (imperial) gallons, pints and fluid ounces are different sizes.
Every volume unit is a fixed multiple of one base unit, the L. To convert a value, multiply it by the size of the starting unit and divide by the size of the target unit. For example, to convert gal (US) to L, multiply by 3.785411784. To go the other way, divide by 3.785411784.
The converter above does this for you and shows the exact formula under the result.
Worked examples
US gallons to Liters
| US gallons (gal (US)) | Liters (L) |
|---|---|
| 1 gal (US) | 3.785411784 L |
| 2 gal (US) | 7.570823568 L |
| 5 gal (US) | 18.92705892 L |
| 10 gal (US) | 37.85411784 L |
| 25 gal (US) | 94.63529460 L |
| 50 gal (US) | 189.2705892 L |
| 100 gal (US) | 378.5411784 L |
| 1,000 gal (US) | 3,785.411784 L |
Liters to US gallons
| Liters (L) | US gallons (gal (US)) |
|---|---|
| 1 L | 0.2641720524 gal (US) |
| 2 L | 0.5283441047 gal (US) |
| 5 L | 1.320860262 gal (US) |
| 10 L | 2.641720524 gal (US) |
| 25 L | 6.604301309 gal (US) |
| 50 L | 13.20860262 gal (US) |
| 100 L | 26.41720524 gal (US) |
| 1,000 L | 264.1720524 gal (US) |
Volume units explained
| Unit | Symbol | Equals |
|---|---|---|
| Cubic meters | m³ | 1 m³ = 1,000 L |
| Liters | L | 1 L = 1 L |
| Milliliters | mL | 1 mL = 0.001 L |
| Cubic centimeters | cm³ | 1 cm³ = 0.001 L |
| Cubic millimeters | mm³ | 1 mm³ = 0.000001 L |
| Hectoliters | hL | 1 hL = 100 L |
| US gallons | gal (US) | 1 gal (US) = 3.785411784 L |
| US quarts | qt (US) | 1 qt (US) = 0.946352946 L |
| US pints | pt (US) | 1 pt (US) = 0.473176473 L |
| US cups | cup (US) | 1 cup (US) = 0.2365882365 L |
| US fluid ounces | fl oz (US) | 1 fl oz (US) = 0.0295735295625 L |
| US tablespoons | tbsp (US) | 1 tbsp (US) = 0.0147867647812 L |
| US teaspoons | tsp (US) | 1 tsp (US) = 0.00492892159375 L |
| Imperial gallons | gal (UK) | 1 gal (UK) = 4.54609 L |
| Imperial quarts | qt (UK) | 1 qt (UK) = 1.1365225 L |
| Imperial pints | pt (UK) | 1 pt (UK) = 0.56826125 L |
| Imperial fluid ounces | fl oz (UK) | 1 fl oz (UK) = 0.0284130625 L |
| Cubic feet | ft³ | 1 ft³ = 28.316846592 L |
| Cubic inches | in³ | 1 in³ = 0.016387064 L |
| Cubic yards | yd³ | 1 yd³ = 764.554857984 L |
| Oil barrels (US) | bbl | 1 bbl = 158.987294928 L |
Popular conversions: liters to gallons, ml to oz, cups to ml.
Frequently asked questions
How many liters are in a US gallon?
One US gallon is 3.785411784 liters. An imperial (UK) gallon is larger: 4.54609 liters.
How many milliliters are in a cup?
A US cup is about 236.6 mL. Recipes in metric countries often use a 250 mL cup, which is slightly larger.
Are US and UK fluid ounces the same?
No. A US fluid ounce is about 29.57 mL and an imperial fluid ounce is about 28.41 mL.
How do I convert gal (US) to L?
Multiply the value in gal (US) by 3.785411784 to get L. For example, 10 gal (US) = 37.85411784 L.
How many L is 1 gal (US)?
1 gal (US) = 3.785411784 L, and 1 L = 0.2641720524 gal (US).
Does this volume converter work offline?
Yes. After the page has loaded once, all calculations run in your browser, so it keeps working without an internet connection.