How to convert US cups to milliliters
Every US cup is 236.59 milliliters, so the conversion is a single multiplication:
Worked example: 25 cup → 25 × 236.588 = 5,914.7 mL.
Quick mental estimate: Multiply by 240: 25 × 240 ≈ 6,000 mL (exact: 5,914.7).
US cups to milliliters conversion table
| US cups (cup) | Milliliters (mL) |
|---|---|
| 1 cup | 236.59 mL |
| 2 cup | 473.18 mL |
| 3 cup | 709.76 mL |
| 5 cup | 1,182.94 mL |
| 10 cup | 2,365.88 mL |
| 15 cup | 3,548.82 mL |
| 20 cup | 4,731.76 mL |
| 25 cup | 5,914.7 mL |
| 50 cup | 11,829.4 mL |
| 75 cup | 17,744.1 mL |
| 100 cup | 23,658.8 mL |
| 200 cup | 47,317.6 mL |
| 250 cup | 59,147 mL |
| 500 cup | 118,294 mL |
| 1,000 cup | 236,588 mL |
Values rounded to four decimals. For a value that is not in the table, use the converter above — it accepts decimals and negative numbers.
When you need this conversion
- Recipes, especially between American cup-based measures and metric millilitres.
- Fuel consumption and tank capacities, quoted in gallons in the United States and litres almost everywhere else.
- Paint, chemicals and garden products, sold in different container sizes by region.
Getting it right
There are three cups in circulation: the US customary cup (236.6 mL) used in recipes, the US legal cup (240 mL) used on nutrition labels, and the metric cup (250 mL) used in Australia and much of Europe. This page uses the US customary cup.
Sanity-check the direction of the result before you use it. One US cup is 236.59 milliliters, so converting US cups to milliliters should make the number larger. If it moved the other way, the conversion was applied backwards — the reverse converter is one click away.
About the units
US cup (cup)
The US cup is a cooking measure of 236.588 milliliters in US recipes. A metric cup is 250 mL and a US legal cup on nutrition labels is 240 mL, which is why recipes converted between countries sometimes come out slightly off.
Milliliter (mL)
The milliliter is one thousandth of a liter, equal to one cubic centimeter. Medicine doses, cosmetics and small recipe quantities use milliliters.
Frequently asked questions
How many milliliters are in 1 US cup?
1 US cup equals 236.59 milliliters. To convert any value, multiply the number of US cups by 236.588.
How do I convert US cups to milliliters in my head?
Multiply by 240: 25 × 240 ≈ 6,000 mL (exact: 5,914.7).
Is the cup to mL conversion exact?
1 US cup is exactly 236.5882365 mL; 236.588 is that value rounded.
How do I convert US cups to milliliters in Excel or Google Sheets?
Put the value in A1 and use =A1*236.588. Both Excel and Google Sheets also have a built-in function, =CONVERT(A1,"cup","mL"), which avoids typing the factor by hand.
How many decimal places should I keep?
One US cup is 236.59 milliliters, so any imprecision in your input is magnified: rounding the input by 0.1 cup shifts the result by 23.6588 mL. Enter the most precise value you have and round only the final answer.