309 milliliters in US customary cups

Result

The conversion result is: 309 milliliters is equivalent to 1.30606662685869 US customary cups.^[1]

Conversion formula
How to convert 309 milliliters to US customary cups?

We know (by definition) that: 1 ml ≈ 0.00422675283773037 uscup.

We can set up a proportion to solve for the number of US customary cups.

1 ml / 309 ml ≈ 0.00422675283773037 uscup / x uscup

Now, we cross multiply to solve for our unknown x:

x uscup ≈ (309 ml / 1 ml) * 0.00422675283773037 uscup → x uscup ≈ 1.3060666268586842 uscup

Conclusion:

309 ml ≈ 1.3060666268586842 uscup

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US customary cup is equal to 0.765657723300971 times 309 milliliters.

It can also be expressed as: 309 milliliters is equal to 1 / 0.765657723300971 US customary cups.

Approximation

An approximate numerical result would be: three hundred and nine milliliters is about one point three one US customary cups, or alternatively, a US customary cup is about zero point seven seven times three hundred and nine milliliters.