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If I send 10 ether to someone do I have to pay more gas when I send 1 ether?
What about custom tokens?
Do I have to pay more gas to send more amount of the erc20 tokens that I created personally?
To sum up, does gas price differ according to the amount of tokens being sent?
In general, no, it costs the same. But it may differ if there is some special logic when transferring the tokens.
In the case of Ethers, it will always be the same if the receiver is an EOA (Externally Owned Account, a wallet), since there can't be any logic at the receiving end. If the receiver is a contract, it may start some special processing which may run different parts of the code depending on the amount of Ether sent. In that case the gas cost is different.
In the case of tokens, it doesn't matter who the receiver is, since there is always code which is executed. So there may always be special processing depending on the transferred amount.
