Volume converters
Convert liquid volumes between milliliters, liters and US fluid ounces — handy for recipes and drinks.
About volume conversion
Liquid volume is where the American, British and metric systems collide most visibly: cups, tablespoons, fluid ounces, pints and gallons on one side, milliliters and liters on the other — and the US and imperial versions of the same names differ by up to 20 %. The converters on this page use US customary units, the ones behind American recipes, drink sizes and fuel prices.
Conversion factors at a glance
| Unit (US) | Equals |
|---|---|
| 1 teaspoon | 4.93 ml |
| 1 tablespoon | 3 tsp = 14.79 ml |
| 1 fluid ounce | 2 tbsp = 29.57 ml |
| 1 cup | 8 fl oz = 236.6 ml |
| 1 pint | 2 cups = 473.2 ml |
| 1 quart | 2 pints = 946.4 ml |
| 1 gallon | 4 quarts = 3.785 L |
| 1 liter | 1 000 ml = 33.81 fl oz = 4.23 cups |
Which converter do I need?
Recipes. Cups to milliliters and tablespoons to milliliters for American recipes in a metric kitchen; the reverse for European recipes with American measuring cups. Drinks and bottles. Fluid ounces to milliliters and liters — coffee sizes, cans, water bottles, perfume. Fuel, pools and tanks. Gallons to liters.
US versus imperial
An imperial pint is 568 ml against the US pint's 473 ml; an imperial gallon is 4.546 L against 3.785 L; the imperial fluid ounce is 4 % smaller than the US one. Old British recipes and some Canadian labels use imperial measures. Australia adds its own twist with a 250 ml cup and a 20 ml tablespoon.
Common questions
How many ml in a cup? 237 ml (US), 250 ml (metric). How many ounces in a litre? 33.8 US fl oz. How many litres in a gallon? 3.785 (US) or 4.546 (imperial). How many tablespoons in a cup? 16. How many cups in a litre? 4.2 US cups. Is a fluid ounce the same as an ounce? No — one is volume, the other weight; they coincide only for water.