ethereum Term
What is Gwei?
A denomination of Ether (ETH) commonly used to measure gas prices, equal to 1,000,000,000 Wei or 0.000000001 ETH.
Detailed Definition & Context
Gwei stands for Giga-wei. Because 1 ETH is 10^18 Wei, gas prices are naturally expressed in Gwei (10^9 Wei) for human readability. Under EIP-1559, base fee and priority tips are quoted in Gwei per unit of gas.
Practical Example
If the base fee is 20 Gwei and a standard transfer takes 21,000 gas, the cost is 420,000 Gwei (0.00042 ETH).
Related Concepts
Gas LimitEIP-1559Wei
Interactive Tool
Open Gwei / Wei / ETH ConverterCalculate & Explore Gwei
Bidirectional converter between Wei, Gwei (Shannon), and Ether (ETH) with USD pricing.