Use a conversion.
It depends on what you consider to be "customary" and what you wish to convert them to.
metric
You use conversion factors.
To convert miles to kilometers, multiply by 1.61 (a kilometer is about 0.62 miles).
There are different ways of converting weight, length, volume etc.
If you don't know their equivalence, then you can either get a common denominator, and compare the numerators. Or you can divide and convert them all to decimal form and then compare.
Yes, there is a site called science made simple online that allows you to convert from the metric system for your recipe. It has a detailed chart that you can easily follow.
#1:It is very simple to convert#2:It is more accurate than the Customary System
It is a customary unit.
To the Adams Family, it isn't customary to leave a tip for the waiter.
yes it is customary
It is a customary unit.