Gwei to USD and ETH converter
Type an amount in gwei, ETH or dollars and the others update. Gwei to ETH is exact (divide by a billion); gwei to dollars uses the live ETH price.
Quick reference
| Gwei | ETH | USD |
|---|---|---|
| 1 | 0.000000001 | … |
| 10 | 0.00000001 | … |
| 100 | 0.0000001 | … |
| 1,000 | 0.000001 | … |
| 21,000 | 0.000021 | … |
| 100,000 | 0.0001 | … |
| 1,000,000 | 0.001 | … |
| 10,000,000 | 0.01 | … |
| 1,000,000,000 | 1 | … |
What a plain ETH transfer costs
| Gas price | Fee in ETH | Fee in USD |
|---|---|---|
| 0.1 gwei | 0.0000021 | … |
| 0.5 gwei | 0.0000105 | … |
| 1 gwei | 0.000021 | … |
| 2 gwei | 0.000042 | … |
| 5 gwei | 0.000105 | … |
| 10 gwei | 0.00021 | … |
| 20 gwei | 0.00042 | … |
| 50 gwei | 0.00105 | … |
Gwei to ETH is exact and needs no price. Dollar figures use CoinGecko's live ETH price. Transfer costs assume a plain ETH transfer (21,000 gas); token transfers and swaps use more gas.
What is gwei?
Gwei ("giga-wei") is a small unit of ether: 1 gwei = 0.000000001 ETH, so 1 ETH = 1,000,000,000 gwei. The smallest unit, the wei, is a billionth of a gwei. Gwei isn't a separate coin you can buy; it's just a convenient way to write small amounts of ETH, the way cents are for dollars. "Gwei to ETH" is therefore exact: divide by one billion.
How gwei turns into a fee
Gas prices on Ethereum are quoted in gwei per unit of gas. Your fee is gas used × (base fee + priority fee). A plain ETH transfer uses 21,000 gas; token transfers, swaps and NFT trades use more. So at a gas price of 2 gwei, a plain transfer costs 42,000 gwei, or 0.000042 ETH, shown in dollars in the second table.
The base fee is set by the network according to how full recent blocks were, and it's burned rather than paid to anyone. The priority fee is a tip to the validator. Your wallet estimates both and shows the result, usually in dollars. For swaps and other transactions, use the network fee calculator with the gas amount your wallet shows.
Fees on layer 2 networks
Networks such as Base, Arbitrum and Optimism also price gas in gwei of ETH, but their fees are usually far lower than on Ethereum itself. If a wallet quotes a fee that looks huge, check which network it's on. More in layer 2 networks explained and crypto fees explained.
Why the dollar value of gwei changes
A gwei is always the same fraction of an ETH, so its dollar value moves only with the ETH price. Gas prices in gwei are a separate thing: they rise when many people want to use the network at once and fall when it's quiet.
How to check a price safely
- Go to the source yourself. Type the address of your exchange or a big price tracker, or use a bookmark. Search ads and links in messages can lead to copycat sites.
- A price is never a reason to rush. "The price is about to jump, buy now" is the oldest pressure tactic there is.
- Fake trading sites show fake numbers. Scam "platforms" display made-up prices and balances that seem to grow, then demand a "tax" or "unlock fee" before you can withdraw. If you can't withdraw, the balance isn't real. Read how to spot fake crypto trading sites.
- Checking a price never needs your wallet. No converter, this one included, should ask you to connect a wallet, sign anything or type a seed phrase. Anything that does is a scam.
Questions
How many gwei are in 1 ETH?
1,000,000,000 (one billion).
How much is 1 gwei in dollars?
The ETH price divided by one billion; the first row of the table shows it now. It's a tiny fraction of a cent.
How do I convert gwei to ETH?
Divide by 1,000,000,000. For example, 21,000 gwei = 0.000021 ETH.
Why is my gas fee different from this table?
Your transaction may use more than 21,000 gas, the base fee changes every block, and wallets add a priority fee. The table shows plain ETH transfers only.
Can I buy gwei?
No. Gwei is a unit of ETH, not a separate token. Anything sold as a "gwei coin" isn't ether.
Where to next
Sources
- Intro to ether, ethereum.org (wei and gwei)
- Gas and fees, ethereum.org
- EIP-1559: fee market change for ETH 1.0 chain
- CoinGecko methodology: how prices are aggregated
- CoinGecko API: coins/markets endpoint
Calculations run in your browser. The only request this page makes is the public CoinGecko price request, which carries no amounts or personal details. Results are estimates for learning and planning, not financial or tax advice. Last reviewed November 4, 2026.