Volume converter

What the result means

A cup is not a universal unit. An Australian metric cup is 250 mL. A US customary cup is about 237 mL. Using the wrong cup changes a recipe.

How it is calculated

to = from × (factorFrom ÷ factorTo), using millilitres as the common base

• Value: The amount in the starting unit.
• From / To: Units from the same measurement family.

Every cooking and liquid unit is stored as millilitres. Australian metric units use the round 250 / 20 / 5 mL values; US units use the US customary definitions.

Worked example

One Australian cup in millilitres

A cake recipe from an Australian book calls for 1 cup of milk.

Australian cup

1 × 250 mL = 250 mL

If it were a US cup

About 237 mL — 13 mL less

For Australian recipes, use 250 mL cups. For US recipes, switch the from-unit to US cup rather than assuming they match.

Australian metric spoons are not US spoons

Food Standards and Australian recipes use a 250 mL cup, a 20 mL tablespoon and a 5 mL teaspoon. US tablespoons are 15 mL (about 14.8 mL exactly) and teaspoons about 4.93 mL.

Imperial gallons (4.546 L) still appear on some imported labels. US gallons are 3.785 L. This converter names each system so they are not mixed.

Questions