646 UK tablespoons in US customary cups
Result
The conversion result is: 646 UK tablespoons is equivalent to 40.9572349976073 US customary cups.[1]
Conversion formula
How to convert 646 UK tablespoons to US customary cups?
We know (by definition) that: 1 brtablespoon ≈ 0.0634012925659556 uscup.
We can set up a proportion to solve for the number of US customary cups.
1 brtablespoon / 646 brtablespoon ≈ 0.0634012925659556 uscup / x uscup
Now, we cross multiply to solve for our unknown x:
x uscup ≈ (646 brtablespoon / 1 brtablespoon) * 0.0634012925659556 uscup → x uscup ≈ 40.957234997607316 uscup
Conclusion:
646 brtablespoon ≈ 40.957234997607316 uscup
Conversion in the opposite direction
The inverse of the conversion factor is that 1 US customary cup is equal to 0.0244157106811146 times 646 UK tablespoons.
It can also be expressed as: 646 UK tablespoons is equal to 1 / 0.0244157106811146 US customary cups.
Approximation
An approximate numerical result would be: six hundred and forty-six UK tablespoons is about forty point nine six US customary cups, or alternatively, a US customary cup is about zero point zero two times six hundred and forty-six UK tablespoons.
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.