Ethereum Unit Converter (ETH, gwei, wei)
Convert between ether (ETH), gwei and wei. Gas prices are quoted in gwei; wei is the smallest unit: 1 ETH = 10¹⁸ wei.
- Ether
- –
- Gwei
- –
- Wei
- –
How it is calculated
- 1 ETH = 1,000,000,000 gwei (10⁹) = 1,000,000,000,000,000,000 wei (10¹⁸)
- 1 gwei = 1,000,000,000 wei
Worked example
| You enter | |
|---|---|
| Value | 1 |
| From | Ether (ETH) |
| You get | |
| Ether | 1 ETH |
| Gwei | 1,000,000,000 gwei |
| Wei | 1,000,000,000,000,000,000 wei |
1 ETH equals .
Questions
Why are gas prices in gwei?
Gas prices per unit are tiny fractions of an ether, so gwei (one billionth of an ether) gives readable numbers such as 10 gwei instead of 0.00000001 ETH.
Sources and checks
Last checked: 18 October 2026. This tool passes 4 automatic tests before every release.
Your numbers never leave your device: the calculation runs in your browser and nothing you type is sent or stored.
Exact definitions. Results are rounded for display. This is not financial advice. Results are estimates for information only and are not financial, investment, tax or legal advice. Crypto prices move fast and leveraged trading can lose more than you expect. Check figures on your exchange or wallet before you act.