Weight Unit
A weight unit is the unit used to measure the size of transactions and blocks as of the SegWit upgrade.
A weight unit is the unit used to measure the size of transactions and blocks as of the SegWit upgrade. Weight units are abbreviated as ‘wu’. Prior to SegWit, transactions and blocks were measured in bytes, and blocks were limited to 1MB or 1 million bytes.
After the SegWit upgrade, transactions and blocks are measured by weight units, and blocks are limited to 4 million weight units. In a legacy transaction, a single byte is equivalent to four weight units. However, for SegWit transactions, any bytes in the Witness, which usually includes the signatures, are counted as one weight unit each.
This discount allows SegWit transactions to pay lower fees relative to non-SegWit transactions. Thus, if a block solely consists of legacy transactions, the block size limit of 4 million weight units is still equivalent to 1MB, but if SegWit transactions are included in the block, the block size limit allows for up to 4MB of data.
Weight Unit is a concept relevant to Bitcoin, finance, or blockchain technology that investors should understand. Onramp's comprehensive Bitcoin glossary provides clear explanations of Weight Unit and hundreds of other terms to support informed investment decisions.
Frequently Asked Questions
What is Weight Unit?
Weight Unit is a term used in Bitcoin, finance, or blockchain technology. Understanding Weight Unit helps investors and enthusiasts build a stronger foundation of knowledge about digital assets and financial markets.
Why is Weight Unit important?
Weight Unit is relevant to understanding how Bitcoin, financial markets, or blockchain technology operates. Knowledge of such concepts helps investors make better-informed decisions about their portfolios.
Where can investors learn more about Weight Unit?
Onramp's Bitcoin glossary offers detailed, accessible explanations of Weight Unit and over 500 other terms related to Bitcoin, finance, and blockchain technology for investors at all experience levels.
