Wei
Also known as: Smallest ETH Unit, Ethereum Denomination, ETH Subunit
The smallest denomination of Ether, representing one quintillionth of an ETH (10^-18 ETH).
Wei is the smallest unit of Ether (ETH), the native cryptocurrency of the Ethereum blockchain. One ETH is equal to 1,000,000,000,000,000,000 Wei (10^18). This granular unit allows for precise calculations and microtransactions on the Ethereum network. Wei is used in Ethereum's smart contracts, gas fees, and internal calculations to avoid rounding errors. Just as a dollar is divided into cents, ETH is divided into Wei to accommodate high-precision financial computations in decentralized applications (dApps).