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Cups to mL Converter
Convert cups to millilitres with selectable international cup standards, a live measuring-cup visual, recipe fractions, custom charts and batch results.
Live result · visual guide · custom chart · batch conversion
Cups → Millilitres
One US customary cup is 236.5882365 mL. Other cup standards define different volumes, so the selected standard matters.
Live conversion result
Converted value
Measuring-cup fill guide
The fill level compares the converted amount with a 500 mL measuring cup and is illustrative rather than a calibration mark.
5002500 mL
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—Equivalent values
Useful reference values
Choose a practical preset or enter your own value.
Build a custom conversion chart
Set the start, end and interval to create a reference table and graph.
Convert several values
Enter up to 50 values separated by semicolons, spaces or new lines.
| Cups (cup) | Millilitres (mL) |
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Exact conversion relationship
One US customary cup is 236.5882365 mL. Other cup standards define different volumes, so the selected standard matters.
Where this is useful
Cup-to-millilitre conversion is useful for recipes, baking, drinks, nutrition records and adapting measurements between countries.
Understanding the result
US customary, US legal, metric, imperial and Japanese cups are different volume measures. The results compare the selected definition with the alternatives.
Important measurement note
Do not convert cups directly to grams without selecting an ingredient or knowing its density. Flour, sugar, oil and water have different masses for the same volume.
A cup measures volume, not mass. Converting to grams requires the ingredient’s density.
Precision and rounding
The calculator keeps full precision internally and rounds only displayed values. Match the chosen precision to the accuracy of the original measurement.
Batch conversion for lists
Paste a short list to create a clean two-column result table for recipes, specifications, logs or comparisons.
Related conversion tools
Continue with the reverse direction, a focused reference chart or the full category converter.
Cups to mL Converter – Frequently asked questions
How many millilitres are in one US customary cup?
One US customary cup is approximately 236.588 mL.
Is a metric cup the same size?
No. A metric cup is exactly 250 mL.
What is a US legal cup?
For US nutrition labelling, one legal cup is defined as 240 mL.
How large is an Imperial cup?
One Imperial cup is approximately 284.131 mL.
Can I convert cups to grams?
Only when the ingredient density is known; cups measure volume while grams measure mass.
Can I use recipe fractions?
Yes. The presets include common quarter, third, half and three-quarter cup amounts.
Can I convert several cup values?
Yes. The batch tool accepts up to 50 values.
Which standard should I choose?
Use the cup standard stated by the recipe or its country of origin.