cups (US) to milliliters Converter
Type a value in cups (US) and get the answer in milliliters instantly — or convert the other way. The conversion uses the exact relationship 1 cups (US) = 236.588 milliliters, the same formula used in textbooks and engineering references.
US recipes measure by cups; nearly every other country — and every scale — uses milliliters. One US customary cup is 236.588 milliliters, which is why American and metric recipes never quite line up without a converter.
How to use
- Type your value into the cups (US) box — the milliliters result updates as you type.
- To go the other direction, type into the milliliters box instead and read the cups (US) result.
- Copy the result with one tap, or scan the reference table below for common values.
Frequently asked questions
How do you convert cups (US) to milliliters?
Multiply the number of cups (US) by 236.588. For example, 10 cups (US) = 2365.88 milliliters. The converter above does this for you and shows more decimal places than you will ever need.
How many milliliters are in one cups (US)?
Exactly 236.588 milliliters. This is a fixed definition, not an approximation, so the conversion is exact at any scale.
Is this converter accurate for professional use?
Yes — it uses full double-precision arithmetic and the official cups (US)-to-milliliters factor, so results are reliable for schoolwork, cooking, fitness, travel and technical work.
Can I convert milliliters back to cups (US)?
Yes. The converter is two-way: just type in the second box and the first box updates instantly with the reverse conversion.