GNU Units unit conversions

Also, look at this awesome example of what Units can do (It is a calculation of the effect of adding salt to a quantity of water on the boiling point of the resultant solution, with the answer in Δt in degrees Fahrenheit)
For freezing-point depression, consult this formula.

Now with slightly modified unit definitions! The only difference is that I added a dummy primitive unit "unit" (abbr. "u") to assist in cases where the unit you want either doesn't exist or doesn't matter.
Currency exchange rates are not dynamically updated and thus likely out of date (currently 2025-06) so I recommend not relying on those. Try literally any other service for that if you need accurate rates.

Utility Functions: Clear; Duplicate