Changing Units From Joules to Mega electron Volts

[majormuss]

Homework Statement

I always have problems when changing units form Joule form to Megaelectron Volts and vice versa...whats the easiest way to find them?

Homework Equations

The Attempt at a Solution

I always get confused at the conversion part.

 

[rl.bhat]

Homework Statement

I always have problems when changing units form Joule form to Megaelectron Volts and vice versa...whats the easiest way to find them?

1 MeV = 10⁶eV = 1.6*10^-19*10⁶ Joules