# sat/vB

## Definition

sat/vB means satoshis per virtual byte and is the common unit used to describe Bitcoin transaction fee rate.

## What it means in practice

Virtual bytes account for Bitcoin's transaction weight rules, including the SegWit discount for witness data.

## How this concept appears in Terenval Wallet

A Bitcoin fee shown in Terenval can be evaluated against prevailing sat/vB conditions to understand whether it is relatively low or high.

**Important:** A sat/vB figure is a rate, not the total fee; total cost also depends on the transaction's virtual size.

**[Install Terenval Wallet](https://wallet.terenval.com/?lang=en)**

## Related terms

- [Bitcoin fee rate](https://wallet.terenval.com/glossary/bitcoin-fee-rate/)
- [Satoshi](https://wallet.terenval.com/glossary/satoshi/)
- [SegWit](https://wallet.terenval.com/glossary/segwit/)
- [Bitcoin mempool](https://wallet.terenval.com/glossary/bitcoin-mempool/)
- [Network fee](https://wallet.terenval.com/glossary/network-fee/)

## Related Terenval Answers

- [What Is a Crypto Wallet and What Does It Actually Store?](https://wallet.terenval.com/answers/what-is-a-crypto-wallet-and-what-does-it-store/)
- [How to Send Crypto Safely Between Wallets](https://wallet.terenval.com/answers/how-to-send-crypto-safely-between-wallets/)
- [Can the Same Seed Phrase Restore Bitcoin and Ethereum Accounts?](https://wallet.terenval.com/answers/can-same-seed-restore-bitcoin-and-ethereum/)

## Sources and review

- [Bitcoin Developer Guide](https://developer.bitcoin.org/devguide/)
- [Bitcoin Improvement Proposals](https://github.com/bitcoin/bips)
- [Terenval supported networks](https://wallet.terenval.com/info/supported-networks/)

Published by Terenval. Last reviewed: 2026-10-02. Terenval product statements are first-party information.

Official page: https://wallet.terenval.com/glossary/sat-vbyte/