![]() Under these assumptions, you have to use 148 Byte per input and 34 Byte. ![]() You can inform yourself about fee recommendations in articles like this one.įor simplicity, let's assume you use P2PKH with compressed keys (which is standard), have a UTXO large enough for the entire transaction but not of just the right size, so you need a change address (which is almost always the case). ![]() The Amount of FeeĪs for how much the fee will be, let's say you pay a fee of ρ/Byte where ρ is around 10 Satoshi. If you use the dynamic fees feature, you will receive a warning if the fees are currently unusually high due to inconvenient network conditions.Īs an alternative even for that, you can check the checkbox Set transactions fees manually in Tools → Preferences → Transactions which lets you set the fee manually for every transaction. In any case, Electrum shows you the fee in a popup before the transaction is sent if you check check View transactions before signing in Tools → Preferences → Transactions (not sure whether it does if you don't). Adjusting the Fee in ElectrumĪlternatively, you can check the box Dynamic fees in Tools → Preferences → Transactions to use Electrum's dynamic fees feature which changes the fee function to not only depend on the size of the transaction being submitted but also on the network conditions (the number of pending transactions and the current rate at which transactions are processed). It can be adjusted as a linear function of the transaction size in Tools → Preferences → Transactions. The FeeĪs the fee by default is paid per transaction – not per transaction output –, you only have to pay it once even if you send money to a large number of addresses. The amount field probably isn't grayed out from the beginning because you technically can switch between pay to many mode and pay to single address mode without choosing Tools → Pay to many by just hitting enter in the "Pay to" field which automatically makes it a text area. The amount field will be automatically filled in once you have at least one valid line in the "Pay to" field: Note that the unit of the amount can be changed in the settings ( Tools → Preferences → Appearance → Base unit) and is mBTC by default. The "Pay to" field will become a text area and a popup will open, telling you how to send money to many addresses. Just switch to the Send tab and then (in the menu) choose Tools → Pay to many. TL DR: Just read the second paragraph of "Concrete Numbers".ĭoing this in Electrum is very simple.
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