How Many mL in a Cup?

There are 236.6 ml in a US cup and 250 ml in a metric cup. The US cup is the standard used in American recipes.

How many ml in a cup? — see the answer and conversion table below.

Use the related converter below for custom values.

Formula

Answer: There are 236.6 ml in a US cup and 250 ml in a metric cup. The US cup is the standard used in American recipes.

Example

Question: How many mL in a cup? Answer: There are 236.6 ml in a US cup and 250 ml in a metric cup. The US cup is the standard used in American recipes.

How to Use

  1. Read the direct answer at the top of the page
  2. Check the conversion table for common values
  3. Use the related converter for custom values
  4. Browse the FAQ for common follow-up questions

Frequently Asked Questions

Is 250ml equal to 1 cup?

Only in the metric system (used in Australia, Canada, UK). In the US, 1 cup = 236.6 ml. Check your recipe's origin.

How many ml in half a cup?

There are 118.3 ml in half a US cup (1/2 cup).

How many cups is 500 ml?

500 ml is approximately 2.11 US cups (500 / 236.6).

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Author: Calczy Editorial Team Reviewed by: Calczy Editorial Team Last updated: 2026-09-16

This page was reviewed for accuracy by the Calczy editorial team. Our editorial process follows our editorial policy to ensure reliable, up-to-date conversion tools and reference content.