Online Calculators FreeReference Manual

Cups (US) to Milliliters Converter

Convert cups (us) to milliliters instantly. Exact factor: 1 cup = 236.6 mL.

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Convert cups (us) to milliliters

The exact conversion factor is 1 cup = 236.6 mL. Type any value and the result updates instantly; the math is shown beneath the board.

Worked by hand

Multiply the cups (us) value by 236.6 to get milliliters.

Worked example

  1. Take 1 cup
  2. multiply by 236.6
  3. the result is 236.6 mL

How to use it

  1. Enter your cups (us)
  2. Read the milliliters result
  3. Check the factor line to verify by hand

Frequently asked questions

How many milliliters are in one cups (us)?

Exactly 236.6 mL, by the SI/NIST definition.

How do I convert milliliters back to cups (us)?

Divide by 236.6 — or use the full converter where both directions are one click.

Is this rounding or exact?

The factor is exact; only the displayed decimals are rounded.