Volume & Liquid Converter
Convert liters to gallons, ml to fluid ounces, cups to ml and more. Supports US and Imperial volume units.
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All units
| Unit | Value | Copy |
|---|---|---|
| MillilitermL | 1000 | |
| LiterL | 1 | |
| Cubic Meterm³ | 0.001 | |
| Cubic Footft³ | 0.035314667 | |
| Cubic Centimetercm³ | 1000 | |
| US Fluid Ouncefl oz | 33.814023 | |
| US Cupcup | 4.2267528 | |
| US Pintpt | 2.1133764 | |
| US Quartqt | 1.0566882 | |
| US Gallongal | 0.26417205 | |
| Imperial Fluid Ounceimp fl oz | 35.19508 | |
| Imperial Pintimp pt | 1.759754 | |
| Imperial Gallonimp gal | 0.21996925 | |
| Tablespoon (US)tbsp | 67.628045 | |
| Teaspoon (US)tsp | 202.88414 |
Popular conversions
How volume conversion works
Each unit is stored in liters. The US gallon is defined as 231 cubic inches, exactly 3.785411784 L, and the US cup, pint, quart, fluid ounce, tablespoon and teaspoon are exact fractions of it: 1 gallon = 4 quarts = 8 pints = 16 cups = 128 fl oz. The imperial (UK) gallon is a different, larger unit of exactly 4.54609 L, and its pint and fluid ounce differ too.
Metric volume is simpler: 1 liter is 1,000 mL and 1,000 cm³, and a cubic meter is 1,000 liters. The tool multiplies by the source unit's size in liters and divides by the target's.
Worked examples
Bottles, mL to US fluid ounces
A 2 L bottle is 2 ÷ 0.0295735 = 67.63 US fl oz. A 12 fl oz can is 12 × 29.5735 = 354.9 mL, labeled 355 mL.
Buckets and tanks, gallons to liters
A 5-gallon bucket holds 5 × 3.785 = 18.93 L. A 20 L jerry can holds 5.28 US gallons.
Recipes, mL to cups
500 mL ÷ 236.59 = 2.11 US cups. 1 cup is exactly 16 tablespoons, and 1 tablespoon is 3 teaspoons.
US kitchen and container sizes in metric
| fl oz | mL | L | imp fl oz | |
|---|---|---|---|---|
| 1 teaspoon | 0.166667 | 4.92892 | 0.00492892 | 0.173474 |
| 1 tablespoon | 0.5 | 14.7868 | 0.0147868 | 0.520421 |
| 1 fluid ounce | 1 | 29.5735 | 0.0295735 | 1.04084 |
| 1 cup | 8 | 236.588 | 0.236588 | 8.32674 |
| 1 pint | 16 | 473.176 | 0.473176 | 16.6535 |
| 1 quart | 32 | 946.353 | 0.946353 | 33.307 |
| 1 gallon | 128 | 3,785.41 | 3.78541 | 133.228 |
Common mistakes
- Using a US gallon for a UK figure. An imperial gallon is 1.2 US gallons (4.546 L vs 3.785 L). UK fuel economy in mpg looks higher for that reason.
- Treating US and UK pints as equal. A US pint is 473 mL; an imperial pint is 568 mL.
- Converting grams to mL as if every ingredient were water. Only water is close to 1 g per mL; flour, sugar and oil are not. For recipes, convert by ingredient on a grams-to-cups tool.
- Assuming a cup is 250 mL everywhere. The US customary cup is 236.6 mL, US nutrition labels use 240 mL, and Australian and some other metric recipes use 250 mL.
Sources
Conversion charts
Frequently asked questions
How many ml are in a US cup?
1 US cup equals about 236.59 mL.
How many liters in a gallon?
1 US gallon equals about 3.7854 liters.
How many cups are in a liter?
4.227 US cups, because a US cup is 236.59 mL.
How many liters are in a cubic foot?
28.317 liters, which is 7.48 US gallons.
How many mL is a tablespoon?
A US tablespoon is 14.79 mL, usually rounded to 15 mL.