How to convert 220 metric teaspoons to US customary teaspoons?
We know (by definition) that:
We can set up a proportion to solve for the number of US customary teaspoons.
Now, we cross multiply to solve for our unknown :
Conversion in the opposite direction
The inverse of the conversion factor is that 1 US customary teaspoon is equal to 0.0044808378125 times 220 metric teaspoons.
It can also be expressed as: 220 metric teaspoons is equal to US customary teaspoons.
An approximate numerical result would be: two hundred and twenty metric teaspoons is about two hundred and twenty-three point one six US customary teaspoons, or alternatively, a US customary teaspoon is about zero times two hundred and twenty metric teaspoons.
 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.