Gordon Henderson wrote:


American fluid ounces are the same as over here - One ounce of pure water
weighs one ounce avoirdupois.

The USians put 16 of these into a pint, so a US pint weighs 1lb, while
we put 20 into a pint. (So a UK gallon of water weighs 10lbs)


US fluid ounces are NOT exactly the same as Imperial fluid ounces.

1 US fluid oz = 1.04084 Imperial fluid ounces

1 Imp fluid oz = 0.96076 US fluid ounce

Close, but not quite the same.

Sheila