Ethereum Unit Converter
Convert ETH, Wei, Gwei, Kwei, Mwei, Szabo, and Finney values with exact browser-based Ethereum unit calculations, gas fee estimates, copy actions, and JSON export.
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All conversions happen instantly in your browser. Standard denominations use 1 ETH = 10^18 Wei.
1.25 ETH = 1,250,000,000 gwei
| Unit | Symbol | Converted Value | |
|---|---|---|---|
| Wei | wei | 1,250,000,000,000,000,000 | |
| Kwei | kwei | 1,250,000,000,000,000 | |
| Mwei | mwei | 1,250,000,000,000 | |
| Gwei | gwei | 1,250,000,000 | |
| Szabo | szabo | 1,250,000 | |
| Finney | finney | 1,250 | |
| Ether | ETH | 1.25 |
| Unit | Symbol | Wei Value | Common Use |
|---|---|---|---|
| Wei | wei | 10^0 | Smart contracts, lowest denomination |
| Kwei | kwei | 10^3 | Very small amounts |
| Mwei | mwei | 10^6 | Micro transactions |
| Gwei | gwei | 10^9 | Gas prices, fees, transactions |
| Szabo | szabo | 10^12 | Legacy unit, rarely used |
| Finney | finney | 10^15 | User-friendly small ETH values |
| Ether | ETH | 10^18 | Main cryptocurrency unit |
Gas Speed Guide
ETH Price (USD)
$3,238.65
Editable reference price
Fees are estimates and may vary based on network congestion.
Gwei is the standard unit for Ethereum gas prices and equals 10^9 Wei.
Wei is the smallest Ether unit. All Ethereum values are stored in Wei.
Convert precisely between Ethereum units without rounding errors.
Gas Fee = Gas Limit x Gas Price. Example: 21,000 x 25 Gwei = 0.000525 ETH.
Enter an amount, choose the source unit, and pick the output unit. The table updates every Ethereum denomination so you can compare values used in wallets, smart contracts, APIs, and gas fee settings.
Set gas price in Gwei and gas limit to estimate the transaction fee in ETH. Add an ETH price to see a simple USD reference for planning and review.
What is 1 ETH in Wei? 1 ETH equals 1,000,000,000,000,000,000 Wei.
Why are gas prices shown in Gwei? Gwei keeps gas prices readable while still mapping exactly to Wei.
Does this fetch live ETH prices? No. The ETH price field is editable so you can enter the reference price you want to use.