Cooking volume converter
Convert cups, spoons and millilitres — metric and US measures differ.
Fill in the fields and the result will appear here automatically.
Converts cooking volume between millilitres, litres, teaspoons, tablespoons, cups and fluid ounces. A US cup is 236.59 ml and a metric cup is 250 ml, so every measure is named explicitly.
How it works
Formula and logic
Every measure converts through the millilitre using exact factors.
Example
A US cup is about 236.59 ml and a metric cup is 250 ml. Their difference is about 5–6%, depending on the comparison base; this converts measures rather than predicting a recipe’s outcome.
Fields and units
- Volume — in the selected source unit
- From unit — list option
- To unit — list option
How to use
- — Enter the value.
- — Pick the source unit.
- — Pick the target unit.
Method and limitations
- Calculation method
- Formula and logic
- Data or methodology source
- NIST: conversion-factor tables, Appendix B.9 NIST: SI volume units
- Limitation
- The result is a rounded unit conversion. Check the entered value and selected units.
FAQ
Which cup does a recipe mean?
It depends on the source: the US cup is 236.59 ml, the metric cup is 250 ml. Both are named explicitly here so the choice is yours.
Can a cup of flour be converted to grams?
No — that needs the density of the specific ingredient, and this converter works with volume only.
How many teaspoons are in a tablespoon?
Three, in both the metric and the US system.
What is a fluid ounce?
The US fluid ounce is exactly 29.5735295625 ml; the imperial one differs and is not used here.