This converter turns milliliters into US cups instantly, using the exact factor 1 milliliter = 0.004226752838 US cups. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
One thousandth of a litre, equal to one cubic centimetre. The US legal cup used in recipes: 240 mL, or 236.6 mL by the customary definition.
Because the relationship is a simple proportion, one multiplication does the whole job. The table further down gives pre-computed values for the amounts people look up most often, and the result panel also reports the reverse conversion so you can check the figure both ways.
The formula
milliliters- The amount you are converting, measured in milliliters
0.004226752838- The exact number of US cups in one milliliter
US cups- The converted result
How it works, step by step
- Enter the number of milliliters you want to convert.
- The value is multiplied by 0.004226752838, the exact conversion factor.
- The result is displayed in US cups, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 milliliters
Multiply 5 by 0.0042267528. That gives 0.021134 US cups. A quick sanity check: one milliliter is smaller than one US cup, so the number should get smaller — and it does.
Converting 72 milliliters
72 × 0.0042267528 = 0.304326 US cups. Working backwards, 0.304326 ÷ 0.0042267528 returns 72 milliliters, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many US cups are in one milliliter?
Exactly 0.004226752838. Every conversion on this page is that single number multiplied by your input, so the result carries no rounding error beyond what is shown.
What is the formula to convert milliliters to US cups?
Us Cups = milliliters × 0.004226752838. To reverse it, divide instead: milliliters = US cups ÷ 0.004226752838, which is the same as multiplying by 236.5882365.
Is the milliliter bigger than the US cup?
No. One milliliter is only 0.00422675 of a US cup, so the US cup is the larger unit.
Why does my answer differ slightly from other ml to cups converters?
Most differences come from rounding the factor too early. This tool keeps full double precision through the calculation and only rounds at the final display step, and it also shows the unrounded value so you can see exactly where any difference appears.
What is a milliliter?
One thousandth of a litre, equal to one cubic centimetre.
What is a US cup?
The US legal cup used in recipes: 240 mL, or 236.6 mL by the customary definition.
Milliliters to US cups reference table
| Milliliters | Us Cups |
|---|---|
| 0.5 mL | 0.002113 cup |
| 1 mL | 0.004227 cup |
| 2 mL | 0.008454 cup |
| 3 mL | 0.01268 cup |
| 5 mL | 0.021134 cup |
| 10 mL | 0.042268 cup |
| 15 mL | 0.063401 cup |
| 20 mL | 0.084535 cup |
| 25 mL | 0.105669 cup |
| 50 mL | 0.211338 cup |
| 75 mL | 0.317006 cup |
| 100 mL | 0.422675 cup |
| 250 mL | 1.0567 cup |
| 500 mL | 2.1134 cup |
| 1000 mL | 4.2268 cup |
Exact factor: 1 milliliter = 0.004226752838 US cups. Values rounded for display.