21 UK tablespoons in US customary cups

Result

The conversion result is: 21 UK tablespoons is equivalent to 1.33142714388507 US customary cups.[1]

Conversion formula
How to convert 21 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 / 21 brtablespoon ≈ 0.0634012925659556 uscup / x uscup

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

x uscup ≈ (21 brtablespoon / 1 brtablespoon) * 0.0634012925659556 uscup → x uscup ≈ 1.3314271438850676 uscup

Conclusion:

21 brtablespoon ≈ 1.3314271438850676 uscup

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US customary cup is equal to 0.751073766666667 times 21 UK tablespoons.

It can also be expressed as: 21 UK tablespoons is equal to 1 / 0.751073766666667 US customary cups.

Approximation

An approximate numerical result would be: twenty-one UK tablespoons is about one point three three US customary cups, or alternatively, a US customary cup is about zero point seven five times twenty-one 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.