In a parallel universe, someone is memeing about how teachers waste our time on useless stuff and never taught us to convert between units.

This is actually pretty important to being able to solve engineering problems in the real world. Invariably, every little sub industry has its own cursed unit system. And dimensional analysis is great for solving real problems on its own.

And if you get to a high enough physics level, they start setting hbar = c = 1 or G = c = 1, and you never have to worry about it again.

I'm the mean time, it's worthwhile to learn the trick to do this stuff fast-ish.

Just divide by 3.6

Example:

10 km /h * 1000 m / km = 10,000 m /h

10,000 m/h * 1h/3600s = 10,000/ 3,6000 m/s = 10/3.6 m/s

I'll be pissed if the comments are about metric units

Wait what, jow many kilominutes per hour is one mile per stone?

Just multiply by (1000m/1km)(1h/3600s) and cancel out the units, kids

Don't ky/s over unit conversions OP. It's not that hard.

It isn't even that much of a time waste you just multiply 1000/3600

I hate it when they do it !