Weight & Volume Units

The traps in this group are the ones that cost money: the troy ounce used for precious metals is heavier than the ounce used for food, the imperial gallon is a fifth larger than the US gallon, and dry measure is a separate system from liquid measure. Each page states which definition it uses and gives the exact factor rather than a rounded one.

All Weight & Volume Units calculators

1,116 focused tools, showing 121–240.