261 milliliters in US quarts
Result
The conversion result is: 261 milliliters is equivalent to 0.275795622661907 US quarts.[1]
Conversion formula
How to convert 261 milliliters to US quarts?
We know (by definition) that: 1 ml ≈ 0.00105668820943259 usquart.
We can set up a proportion to solve for the number of US quarts.
1 ml / 261 ml ≈ 0.00105668820943259 usquart / x usquart
Now, we cross multiply to solve for our unknown x:
x usquart ≈ (261 ml / 1 ml) * 0.00105668820943259 usquart → x usquart ≈ 0.275795622661906 usquart
Conclusion:
261 ml ≈ 0.275795622661906 usquart

Conversion in the opposite direction
The inverse of the conversion factor is that 1 US quart is equal to 3.62587335632184 times 261 milliliters.
It can also be expressed as: 261 milliliters is equal to 1 / 3.62587335632184 US quarts.
Approximation
An approximate numerical result would be: two hundred and sixty-one milliliters is about zero point two eight US quarts, or alternatively, a US quart is about three point six two times two hundred and sixty-one milliliters.
Footnotes
[1] The precision is 15 significant digits (fourteen digits to the right of the decimal point).
Results may contain small errors due to the use of floating point arithmetic.