- 48
- 0
Goku's power level at the start of Dragon Ball was 10. An adult Bulma has a power level of 12 during the Saiyan Saga. These are the official power levels of the series. And while they don't apply to the scale here, I do believe this is note-worthy to at least consider a realistic upgrade for her.
http://dragonball.wikia.com/wiki/List_of_power_levels#Dragon_Ball_Z
http://dragonball.wikia.com/wiki/List_of_power_levels#Dragon_Ball_Z