I was looking into how swaps for Uniswap V2 worked. I was looking at their website and they showed an example with 3 tokens being swapped into 1. However, I was having some difficulties understanding the example.

They say that the fee for trading is 0.3%, but in the illustration they say that it works out to 0.03 in additional tokens that must be added. Isn't this 3% or am I missing something?

1 Answer 1


Uniswap v2 swap fee is 0.3%, the text is correct, the illustrations wrong.

  • So just to be clear, 1.003 * 3 = 3.009 should be the total amount added to the pool?
    – Ozzy08
    Commented Oct 25, 2022 at 13:04
  • @Ozzy08 that looks correct.
    – kfx
    Commented Oct 25, 2022 at 15:53

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