BMI calculator. Does not include age or sex

The Project (only works properly in the editor)
Click the buttons to change the value, and the BMI to copy it. Weight is in kg and height in cm.

that's one of my favorite songs

This is wrong. You're getting width confused with height.
Height is just the size by itself, width is (7/12)*size.

can you please just use snap's ask and wait blocks instead of javascript ask dialogs? it's much much better (and it does fix a glitch).

also, you only need to calculate the inputs when they change, same with render. Here's a remix with what I'm talking about.