120 milliliters to US cups
0.507 cup
120 mL = 0.507 cup.
US cups
0.507cup
120 mL = 0.507 cup
In short
How many US cups is 120 milliliters?
120 mL = 0.507 cup. 1 milliliter = 0.004227 US cups, so the working is 120 × 0.004227 = 0.507.
The working
The factor below is an exact definition rather than a measurement, so nothing is approximated in the arithmetic. The only rounding on this page happens where a number is displayed.
1 milliliter = 0.004227 US cups 120 × 0.004227 = 0.507
How much precision do you need?
Each row is the same answer cut at a different number of decimals, with what that choice costs you. Pick the shortest row whose error is smaller than whatever you are measuring with.
| Rounded to | Answer (cup) | Off by |
|---|---|---|
| Whole number | 1 | +0.49279 |
| 1 decimal | 0.5 | −0.00721 |
| 2 decimals | 0.51 | +0.00279 |
Round trip: take 0.507 cup back the other way and you land on 119.9502 mL — a drift of 0.0498 mL. That gap is the rounding, not the conversion.
Frequently asked questions
What is 120 milliliters in US cups?
120 milliliters is 0.507 US cups. 1 milliliter = 0.004227 US cups, so the working is 120 × 0.004227 = 0.507.
How accurate is 0.507 cup?
Rounding to 0.507 cup and converting straight back gives 119.9502 mL, a drift of 0.0498 mL from the 120 you started with. The factor itself is exact; every bit of that difference comes from the rounding, not the conversion.
Nearby values
Any value at all
Milliliters to Cups Converter
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