Ethereum Unit Converter
All conversions run locally in your browser using native BigInt arithmetic — nothing is sent anywhere, and there's no floating-point precision loss.
How to use this Ethereum unit converter
- Type an amount into any unit field.
- All other units update instantly with exact precision.
- Clear a field to reset all fields to empty.
Why does Ethereum use multiple units?
Wei is the smallest indivisible unit of Ether, similar to how a satoshi relates to Bitcoin — 1 Ether equals 10^18 Wei. Gwei (10^9 Wei) is the standard unit for quoting gas prices, since raw Wei or Ether values would be inconveniently small or large. Szabo (10^12 Wei) and Finney (10^15 Wei) are older intermediate denominations, less common today but still supported by most tooling.
Why use BigInt instead of regular numbers?
JavaScript's regular numbers lose precision above 2^53, and Wei amounts routinely exceed that (1 Ether alone is 10^18 Wei) — BigInt performs exact integer arithmetic with no rounding errors, which matters when every Wei counts.
What's the difference between Gwei and gas price?
Gwei is just a unit of Ether — gas price is a value expressed in that unit, representing how much you pay per unit of gas consumed by a transaction. This converter handles the unit conversion; use OmniDeck's Gas Fee Calculator to estimate a full transaction cost.