If mass and energy are the same thing why aren't they expressed in the same units?

if mass and energy are the same thing why aren't they expressed in the same units?

Because c has units.
They're not the same thing. They're proportional.

If temperature is just average kinetic energy, why don't they have the same units?

Your premise that mass and energy is the same thing is flawed; If mass and energy was the same, then how would someting massless, like light, have energy?

Because units are completely arbitrary. Work in more natural units where c=1.

They are equivalent, not equal.

They are like 2 currencies that can be exchanged at a cost of c^2 joules per kilo of mass. As they are fundamentally different quantities, they have different units (just like £ $ € ...)

Because c ≠ 1 in our shitty SI units of measurement. We Planck when?

Cus it's moving dawg

>mass and energy are the same

They are, think kinetic energy, J=kg m/s.

ElectronVolts (eV) bro

>the same thing

They are equivalent but not the same thing. C has units in ms^-1 too.

[math]eV/c^2[/math] still...
eV is an expression for energy like J, but scaled differently.

They are in the same sense as dollars and euros are the same. They only differ by some exchange factor.

Wrong.

...

Excellent argument!

>he doesn't know matter is just energetic excitations in quantum fields

pls answer this

[math] K = \exp( k_b T ) [/math] or something

It triggers me that the E isn't connected via the middle beam to the top beam of the equal sign.

Either connect both sides of the equations or don't connect either.

Temperature and energy, they just have some constant exchange factor, namely k_B, or the Boltzmann constant. They are pretty much equivalent in that sense, different viewpoints of the same phenomenon.

Well they needed to connect the equal sign to something, it wasn't going to levitate on its own.
The rest is not connected, except for the 2, which needed to be for the same reason.

Only applied to masses at rest.

No, that's not true at all.
Exponential functions cannot have units in the argument, first off. Second off, it's linear. W = exp(S/k_b), but T is not exponentially related to KE- it's direct.

They are not the same and thus are expressed in different units.

Also you literally just posted the conversion formula