So in Dragon Ball Heroes is pretty clear, Goku Ultra Instinct is able to overpower Cumber, something Super Saiyan Blue Vegito Kaioken times 50 wasnt able to do. So in Dragon Ball Heroes Ultra Instinct has over 50 times a larger multiplier than Potara Fusion. But how about the canon universe? Are there hints or statements which shows which would have a larger multiplier, Ultra Instinct or Potara fusion?

2 Answers 2


The Multiplier for Ultra Instinct is definitely greater than the Potara fusion Multiplier. We know this as the SSJ Vegito for the Buu Saga, is nothing in comparison to MUI Goku. There are several other examples indicating the same:

  • SSJG Goku being stronger than Vegito in the Buu Saga(MUI is several times stronger).
  • UI Omen completely overwhelming SSJ2 Kefla and MUI is even more stronger.
The Potara fusion is also dependent on the characters who fuse and I think it is safe to assume the multiplier always stays constant. Disregarding the power of the fused characters, the potara fusion multiplier will never be > than the Ultra Instinct Multiplier. It wouldn't make logical sense for a potara fusion between Hercule and say, one of his students, be able to go toe to toe with a god of destruction.

  • No, actually my question is if the multiplier for Ultra Instinct is larger than the multiplier of Potara fusion. I edited the question to avoid confusion
    – Pablo
    Commented Jan 12, 2019 at 19:25
  • @Pablo Updated Answer! Commented Jan 12, 2019 at 19:51

Your real question seems to be-how does Ultra Instinct work in comparison to Potara?

Potara combine the max power of the fused and then multiply it several times.

Ultra instinct base form-was weaker than Jiren in normal form. Each Jiren power up after that was definitely implied to be a multiple of his base form. Now, once UI was mastered, the increase in power from base form to strong enough to beat super maxed out jiren-would have had to be a multiplied enough to overtake him.

So potara is x+x = 2x * 2(or more) = Total

UI is X * X ^ X

UI would be a greater upgrade, the farther Goku reached into it

  • 1
    Where are you getting these formulas?
    – giraffesyo
    Commented Mar 28, 2019 at 4:45
  • If jiren in base form was a good 1.5 or more stronger than goku in base form, then each power up would be greater for him-so goku would have to overcome that. you can see in the show that the guy could have broken goku at any point up to mastered, so it's fair that at least 1.5(probably more like x10) is a good starting number for jiren over goku to calculate goku Commented Mar 28, 2019 at 14:35

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