Ethereum Unit Converter (ETH / Gwei / Wei)
Ethereum Unit Converter translates between ETH, Gwei and Wei using exact BigInt arithmetic — no floating point rounding. Essential for reading gas prices (quoted in Gwei), interacting with smart contracts (which use Wei) and understanding transaction costs.
Última atualização: July 2026
An Ethereum unit converter translates between ETH, Gwei and Wei — the three denominations Ethereum developers use every day. 1 ETH = 10⁹ Gwei = 10¹⁸ Wei. Gwei is what gas prices are quoted in; Wei is used inside smart contracts. This converter uses BigInt arithmetic so there is zero rounding error. It runs entirely in your browser.
Como usar Ethereum Unit Converter (ETH / Gwei / Wei)
- Type a value in ETH, Gwei or Wei.
- The other two units update instantly with exact precision.
- Read the raw values and optional USD estimate.
Perguntas frequentes
How many Wei are in one ETH?
1 ETH = 10¹⁸ Wei (1,000,000,000,000,000,000).
What is Gwei used for?
Gas prices on Ethereum are quoted in Gwei (e.g. 50 Gwei). Gas fees are calculated as gas units × gas price in Gwei.
Is the conversion accurate?
Yes — it uses JavaScript BigInt, which handles arbitrarily large integers without rounding errors.
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