300 milliliters to US cups
1.268 cup
300 mL = 1.268 cup.
US cups
1.268cup
300 mL = 1.268 cup
In short
How many US cups is 300 milliliters?
300 mL = 1.268 cup. 1 milliliter = 0.004227 US cups, so the working is 300 × 0.004227 = 1.268.
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 300 × 0.004227 = 1.268
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 | −0.26803 |
| 1 decimal | 1.3 | +0.03197 |
| 2 decimals | 1.27 | +0.00197 |
Round trip: take 1.268 cup back the other way and you land on 299.9939 mL — a drift of 0.0061 mL. That gap is the rounding, not the conversion.
Frequently asked questions
What is 300 milliliters in US cups?
300 milliliters is 1.268 US cups. 1 milliliter = 0.004227 US cups, so the working is 300 × 0.004227 = 1.268.
How accurate is 1.268 cup?
Rounding to 1.268 cup and converting straight back gives 299.9939 mL, a drift of 0.0061 mL from the 300 you started with. The factor itself is exact; every bit of that difference comes from the rounding, not the conversion.
Nearby values
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Milliliters to Cups Converter
Convert milliliters to US cups — and see how far the 250 mL metric cup is from the US one.
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