Ethereum Unit Converter
Convert between ETH, Gwei, and Wei instantly in your browser. A simple Ethereum unit converter for developers and power users.
Ethereum unit converter
Type in any field to instantly convert between ETH, Gwei, and Wei. All calculations happen locally in your browser.
1 ETH = 1,000,000,000 Gwei = 1,000,000,000,000,000,000 Wei
Main user-facing unit for balances and transfers.
Common unit for gas prices (e.g. 30 Gwei gas).
Smallest base unit used internally by the Ethereum protocol.
Ethereum unit basics
Ethereum uses Wei as its smallest base unit. ETH, Gwei, and Wei are just different ways of writing the same value at different scales.
1 ETH = 1,000,000,000 Gwei = 1,000,000,000,000,000,000 Wei.
Gwei is commonly used for gas prices in wallets, explorers, and tooling. Wei is used internally by smart contracts and low-level protocol logic.
This page keeps everything in your browser – no data is sent to a server, and you can safely paste or type values to explore how different units relate to each other.