11 US customary cups in metric teaspoons
Conversion
11 US customary cups is equivalent to 520.4941203 metric teaspoons.[1]
Conversion formula
How to convert 11 US customary cups to metric teaspoons?
We know (by definition) that:
We can set up a proportion to solve for the number of metric teaspoons.
Now, we cross multiply to solve for our unknown :
Conclusion:

Conversion in the opposite direction
The inverse of the conversion factor is that 1 metric teaspoon is equal to 0.00192125128987744 times 11 US customary cups.
It can also be expressed as: 11 US customary cups is equal to metric teaspoons.
Approximation
An approximate numerical result would be: eleven US customary cups is about five hundred and twenty point four nine metric teaspoons, or alternatively, a metric teaspoon is about zero times eleven US customary cups.
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.