About ETH Unit Converter
ETH Unit Converter explains Ethereum denominations from wei to tether so on-chain values, gas calculations, and UI displays stay consistent and safe.
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ETH Unit Converter
convert between wei, gwei, ether, and extended ethereum denomination units
Live output enabled
Ready
Enter numeric amount only, then choose the input unit below.
Use Cases
- Convert gas prices in gwei to wei for contract and script inputs.
- Translate large treasury balances into readable ether terms.
- Verify denomination correctness before signing transactions.
Examples
Convert one ether to lower denominations.
Input
Input Value: 1
Input Unit: ether
Output
wei: 1,000,000,000,000,000,000
gwei: 1,000,000,000
finney: 1,000
Convert gwei input into ether for wallet display.
Input
Input Value: 210000
Input Unit: gwei
Output
ether: 0.00021
wei: 210,000,000,000,000
Ethereum Denomination Reference
| Format | Wei Factor (10^x) | What It Means | Common Usage |
|---|---|---|---|
| wei | 10^0 | Smallest indivisible ETH unit | Raw on-chain integer amounts |
| kwei (babbage) | 10^3 | 1,000 wei | Legacy denomination naming |
| mwei (lovelace) | 10^6 | 1,000,000 wei | Intermediate denomination conversions |
| gwei (shannon) | 10^9 | 1,000,000,000 wei | Gas price displays and fee settings |
| szabo | 10^12 | 10^12 wei | Historical micro-payment denomination |
| finney | 10^15 | 10^15 wei | Historical milliether denomination |
| ether | 10^18 | Base user-facing ETH unit | Wallet balances and transfers |
| kether (grand) | 10^21 | 1,000 ether | Large balance notation |
| mether | 10^24 | 10^6 ether | Very large treasury-scale values |
| gether | 10^27 | 10^9 ether | Protocol-level theoretical scale |
| tether | 10^30 | 10^12 ether | Extended denomination reference |
FAQ
Why should smart contracts store values in wei?
Wei avoids floating-point errors by representing ETH amounts as integers, which is the safe and standard on-chain pattern.
Why is gwei shown so often in wallets and explorers?
Gas fees are typically priced in gwei because it keeps fee values human-readable while preserving enough precision.