How to convert liquid measurements

Updated February 21, 2017

Wondering how to convert ounces to cups, cups to quarts or tablespoons to cups? Sometimes this is just too much information to keep in your head when you're trying to cook or bake. Save yourself a headache and print out this eHow and keep it with your recipes.

Three teaspoons equals 1 tablespoon.

Four tablespoons equals 60 ml (1/4 cup or 2 fluid ounces).

Eight fluid ounces equals 235 ml (1 cup).

Two cups equals 500 ml (1 pint).

Two pints equals 1 litre (1 quart or 32 fluid ounces).

Four quarts equals 4 litres (1 gallon or 128 fluid ounces).

Three and one-half gallons equals 13.25 litres (1 barrel).

Two barrels equals 26.5 litres (1 hogshead).

Ten millilitres equals 1 centilitre.

Ten centilitres equals 1 decilitre.

Ten decilitres (or 1,000 ml) equals 1 litre.

Ten litres equals 1 decalitre.

Ten decalitres equals 1 hectolitre.

Ten hectolitres equals 1 kilolitre.

One teaspoon equals about 5 millilitres.

One tablespoon equals about 15 millilitres.

One fluid ounce equals about 30 millilitres (29.573 ml).

One cup equals about 240 millilitres (236.584 ml).

One quart equals about 1 litre (0.94635 L).

One gallon equals about 4 litres (3.7854 L).


The metric system is very easy to learn. It takes a basic unit of measurement (metres for distance, litres for volume, grams for weight) and then adds prefixes for smaller and larger quantities. "Milli-" is one-thousandth, "centi-" is one-hundredth and "deci-" is one-tenth of the basic unit of measure (litres, in this case). "Deca-" is 10 times, "hecto-" is 100 times and "kilo" is 1,000 times the basic unit of measure (litres again). Use approximations for easier conversions between the U.S. and metric systems. See Resources for online metric converter.

Things You'll Need

  • Measuring cups
  • Calculator
  • Measuring spoons
  • Paper
  • Pen or pencil
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