ML to Cups Converter
Convert milliliters to cups for cooking and baking. Enter a volume in milliliters and the tool returns US cups, using the US customary cup of about 236.6 mL. It is the conversion you reach for when a recipe lists metric milliliters but your measuring cups are marked in US cups.
Calculate
Default result: 1.0567 cup (US)
ML to Cups Converter · Result
calculators.dev
US cups
250 ml
Reviewed by the calculators.dev team · Last updated 2026-06-23
How to calculate
Enter the volume and read the US cups result below. To convert by hand, divide milliliters by 236.6: a 500 mL measure is about 2.11 US cups. To convert cups back to milliliters, multiply by 236.6. Because cups vary by country, check which cup your recipe assumes before relying on the figure.
US cups = milliliters ÷ 236.5882365, where 236.5882365 is the milliliters in one US customary cup. Equivalently, milliliters = US cups × 236.5882365. Enter the volume directly in milliliters — 250 mL returns about 1.0567 cups.
Example calculation
250 milliliters divided by 236.5882365 milliliters per US customary cup is about 1.0567 cups. The US customary cup used in most recipes holds 236.5882365 mL, so a 250 mL measure is just over one cup.
- result
- 1.0567 cup
Assumptions
- This page uses the US CUSTOMARY cup of 236.5882365 mL, the cup most US recipes assume. The US LEGAL cup used on nutrition labels is 240 mL, and the METRIC cup is 250 mL — using the wrong one shifts the result by a few percent.
- Cup measures are for volume, not weight; a cup of flour and a cup of water weigh very different amounts.
- Displayed cups are rounded for readability; the underlying value keeps full precision.
Common mistakes
- Assuming all cups are equal — the US customary cup (236.6 mL), US legal cup (240 mL), and metric cup (250 mL) all differ, so match the cup to the recipe's origin.
- Confusing volume with weight; converting a cup of a dry ingredient to milliliters does not tell you its mass.
- Using the wrong cup standard — a metric-cup recipe (250 mL) and a US-customary-cup recipe (236.6 mL) give noticeably different amounts.
Frequently asked questions
How many milliliters is 1 US cup?
One US customary cup is about 236.6 mL (236.5882365 mL exactly).
What is 250 mL in cups?
250 mL is about 1.0567 US customary cups — just over one cup. In a metric cup, 250 mL is exactly one cup.
Why are there different cup sizes?
The US customary cup (236.6 mL) comes from older units, the US legal cup (240 mL) is used on nutrition labels, and the metric cup (250 mL) is used in much of the world. They are close but not identical.
Can I use this for dry ingredients?
It converts volume, so it tells you the cup volume of a milliliter measure. It does not convert weight, so a cup of flour and a cup of sugar differ in grams.