Bitcoin Transaction Size and Fee Estimator

Last Updated on 23. January 2023 by Martin Schuster

Bitcoin Transaction Size and Fee Estimator

Transaction Size

Address Types Segwit stands for Segregated Witness and was introduced in BIP-0141 (Bitcoin Improvement Proposal 141). The size of a Segwit transaction is lower than the size of a legacy Bitcoin transaction, as Segwit reduces the overall size of the transaction.
Formula (For Segwit Bitcoin Addresses):
bytes = Number of Input * 68,5 + Number of Outputs * 31 + 10

Inputs

Outputs

Transaction Fee

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Size bytes