Gwei to ETH converter
Convert gwei, the unit used for gas prices, into ETH. One gwei equals 10^9 wei, and one ether equals 10^9 gwei, so this tool divides your gwei input by 10^9 to give the ether value.
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The exact relationship
1 ether = 10^9 gwei (1,000,000,000 gwei), and 1 gwei = 10^9 wei. To convert gwei to ETH you divide by 1,000,000,000. So 30 gwei is 0.00000003 ETH and 1000000000 gwei is exactly 1 ETH.
Where you hit this in real work
Gas prices are quoted in gwei because raw wei values are unwieldy and whole ETH values are too coarse. When you estimate what a transaction costs, you convert a gas price in gwei times gas used into an ETH total. This tool handles the gwei to ETH step of that math.
Frequently asked
How many gwei are in one ETH?
Exactly 10^9 gwei, or 1,000,000,000 gwei. Equivalently, 1 gwei is one billionth of an ether.
Why are gas prices shown in gwei?
Gwei is a convenient middle unit. Typical gas prices are small fractions of an ether, so expressing them in gwei gives readable whole numbers like 20 or 50.
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