How to convert 640 metric teaspoons to US pints?
We know (by definition) that:
We can set up a proportion to solve for the number of US pints.
Now, we cross multiply to solve for our unknown :
Conversion in the opposite direction
The inverse of the conversion factor is that 1 US pint is equal to 0.1478676478125 times 640 metric teaspoons.
It can also be expressed as: 640 metric teaspoons is equal to US pints.
An approximate numerical result would be: six hundred and forty metric teaspoons is about six point seven five US pints, or alternatively, a US pint is about zero point one five times six hundred and forty 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.