Ethereum Unit Converter
Instantly convert Ethereum amounts between ETH and its smallest unit, the Wei. On Ethereum, 1 ETH = 10^18 Wei, so a single rounding mistake can be costly — this tool keeps every denomination exact.
* 1 Ether = 1,000,000,000,000,000,000 Wei (1018)
Understanding Ethereum units
The native asset of Ethereum is ETH, divisible into 18 decimal places. The smallest indivisible unit is the Wei. Smart contracts, RPC responses, and on-chain transactions almost always use Wei, while wallets and exchanges display ETH — converting between them correctly is essential for developers and traders alike.
Ethereum denomination table
| Unit | Value in Wei |
|---|---|
| Ether (ETH) | 1,000,000,000,000,000,000 |
| Finney | 1,000,000,000,000,000 |
| Szabo | 1,000,000,000,000 |
| Gwei (Shannon) | 1,000,000,000 |
| Wei | 1 |
Why convert Ethereum units?
Whether you are debugging a transaction, setting gas values, reading uint256 contract data, or simply checking a balance, working in the right Ethereum denomination prevents expensive mistakes. This converter handles ETH, Wei, and all intermediate units with full precision.