Question

What is my potential energy if I weigh 60kg and I jump 3 meters in the air?

Answer 1

Gravitational potential energy, relative to ground level, is mgh=60kg*9.8N/kg*3m=60*9.8*3 joules

Answer 2

Your formula is correct and it gives us pleasure to see you have shown your work.

You still need to do the multiplication, of course