Volume Converter
This volume converter changes a value between 19 units: metric (mL, cL, dL, liters, cubic meters and centimeters), US kitchen and liquid measures (teaspoons, tablespoons, fluid ounces, cups, pints, quarts, gallons), British imperial measures, cubic inches and feet, and the oil barrel. Pick the unit you have and the one you want; the table below shows your value in every unit, from a recipe to a fuel tank.
Updated
Results
- Unit
- Conversion factorOne unit of the source expressed in the target unit
| Unit | Value |
|---|
Results are estimates. See the methodology below.
How to convert a volume
- Enter the amount. Use decimals for fractions: ¾ cup is 0.75, ⅓ cup is 0.333333 (with just 0.333 you get 78.78 mL instead of 78.86 mL).
- From: the unit on your recipe, label or spec sheet.
- To: the unit you need.
Units starting with US are US customary measures; units starting with imp are British imperial ones, which have the same names but different sizes. tsp and tbsp are US teaspoons and tablespoons. Besides the result you get the factor for one unit, such as 1 US cup = 236.5882365 mL.
Conversion factors
Every value goes through the cubic meter. The US gallon is defined as exactly 231 cubic inches, and since the inch is exactly 2.54 cm, every US measure has an exact metric value. The imperial gallon is defined directly as 4.54609 liters.
| Unit | Definition | Metric value |
|---|---|---|
| US gal | 231 in³ | 3.785411784 L |
| US qt / US pt | ¼ gal / ⅛ gal | 946.35 mL / 473.18 mL |
| US cup | 1/16 gal = 8 US fl oz | 236.5882365 mL |
| US fl oz | 1/128 gal | 29.5735295625 mL |
| tbsp | ½ fl oz = 3 tsp | 14.79 mL |
| tsp | ⅓ tbsp | 4.93 mL |
| imp gal | by definition | 4.54609 L |
| imp pt / imp fl oz | ⅛ gal / 1/160 gal | 568.26125 mL / 28.4130625 mL |
| ft³ / in³ | (0.3048 m)³ / (2.54 cm)³ | 28.316846592 L / 16.387064 mL |
| bbl (oil) | 42 US gal | 158.987294928 L |
One cubic centimeter equals one milliliter, and one cubic meter is 1,000 liters. The factor line keeps 12 significant digits (1 tbsp = 14.7867647813 mL); the result itself shows up to 10 significant digits (14.78676478 mL).
Examples
1. Kitchen measures in milliliters
| Measure | Milliliters |
|---|---|
| 1 tsp | 4.93 mL |
| 1 tbsp | 14.79 mL |
| ¼ cup | 59.15 mL |
| ⅓ cup | 78.86 mL |
| ½ cup | 118.29 mL |
| 1 cup | 236.59 mL |
One cup holds exactly 16 tablespoons, and one tablespoon 3 teaspoons. A metric recipe calling for 250 mL of milk needs 1.06 US cups.
2. Drinks and bottles
A 12 fl oz can holds 354.88 mL, a 16 fl oz bottle 473.18 mL. A 2-liter bottle is 67.63 fl oz and a 750 mL (75 cL) wine bottle is 25.36 fl oz.
3. Fuel, fridges and oil
A 15-gallon fuel tank holds 56.78 L; a European car's 50 L tank is 13.21 US gallons. A refrigerator listed at 20 ft³ has 566.34 L of space. A barrel of crude oil is 42 gallons, or 158.99 L.
US, imperial and nutrition-label measures
Imperial units share their names with US units but not their sizes. The imperial gallon is 1.2009 US gallons, the imperial pint (568.26 mL) holds 20 imperial fluid ounces, while the US pint (473.18 mL) holds 16 US fluid ounces. Even the fluid ounce differs: 28.41 mL imperial against 29.57 mL US.
Nutrition Facts labels use rounded values set by FDA rules: for labeling, a teaspoon means 5 mL, a tablespoon 15 mL, a cup 240 mL and a fluid ounce 30 mL. That is why a serving of 1 cup on a label may show 240 mL rather than 236.59 mL.
Frequently asked questions
How many milliliters are in a cup?
A US customary cup is 236.5882365 mL, about 236.6 mL. On Nutrition Facts labels a cup is rounded to 240 mL.
How many liters are in a gallon?
A US gallon is exactly 3.785411784 L. An imperial gallon is 4.54609 L. One liter is 0.264 US gallons.
How many fluid ounces are in a liter?
One liter is 33.81 US fluid ounces. Half a liter (500 mL) is 16.91 fl oz.
How many tablespoons are in a cup?
Sixteen. A cup is 8 fluid ounces, a fluid ounce is 2 tablespoons and a tablespoon is 3 teaspoons, so a cup also equals 48 teaspoons.
Is a liter more than a quart?
Slightly. One liter is 1.0567 US quarts, and one US quart is 0.946 L, so a liter is about 5.7% larger.
Can I convert cups of flour to grams here?
No. A cup measures volume, and grams measure mass. How much a cup of flour, sugar or butter weighs depends on the ingredient and how you fill the cup. Use the ingredient's weight from the package or a trusted recipe, then the weight converter if you need ounces.
Sources
Conversions follow the exact US and imperial definitions above and are rounded for display. Measuring cups and spoons themselves vary slightly; for medicine, use the dosing device that comes with it.