On: Insect: a fast, repl-style scientific calculator

[eggy]

I use Frink for pretty much of this. I keep it open on my desktop and do calcs like:

250 lbf * 1 m/s -> kW

You can put hp or other desired units you require in the answer. It will hint on balancing the equation to make the units physically similar.

  [1]  https://frinklang.org