If you’re new to Ethereum it’s likely you are wondering just what is Gwei anyways? You may have seen this word when you initiate a transaction on the Ethereum blockchain. Gwei is always associated with the fees you pay on a transaction on the Ethereum network.
1 ETH = 1,000,000,000 Gwei
1 ETH (Wei) can be broken down to 1,000,000,000 units called Gwei. The best way to remember how Gwei works is to compare it to what satoshi are to Bitcoin, or a penny to a one hundred dollar bill. There are many denominations of ether which are listed in the chart below.
| Unit | Wei Value | Wei |
| wei | 1 wei | 1 |
| Kwei (babbage) | 1e3 wei | 1,000 |
| Mwei (lovelace) | 1e6 wei | 1,000,000 |
| Gwei (shannon) | 1e9 wei | 1,000,000,000 |
| microether (szabo) | 1e12 wei | 1,000,000,000,000 |
| milliether (finney) | 1e15 wei | 1,000,000,000,000,000 |
| ether | 1e18 wei | 1,000,000,000,000,000,000 |