Calculator that supports SI prefixes (under Linux)?

Question

linux

Tell me a calculator that supports SI prefixes (international system of units). That is, so that you can write the expression 1u * 5k and get the answer 5m.
I googled, but nothing was found ... Of course, there is an option to write your own (thankfully, it’s not so difficult), but what if there is one?
Necessary for electronic calculations. This would be much more convenient than operating with degrees, because I often make mistakes in the park.
At the moment I'm using bc.

Answer 1

Hmm ... Apparently I have to write :)