Wei, gwei and ETH converter
Crypto
Explorers, wallets and posts often write amounts in the smallest units: gas prices in gwei, raw balances in wei, Bitcoin amounts in sats. Enter the amount with its unit to see it in the others.
Enter an amount and its unit
Start with an example or your own input
The result will appear here with an explanation of what it does and does not establish.
How to read it
Check which asset the unit belongs to
Gwei and wei are units of ETH, the gas token of Ethereum, Base and Arbitrum. A token balance shown in its raw form uses that token's own number of decimals, which is often but not always 18.
Separate the gas price from the fee
A gas price in gwei is a price per unit of gas. The fee is the gas used multiplied by that price; the explorer shows both for a transaction.
Add a dated price for a dollar value
A conversion to dollars needs a price at a specific time. Note the source and time of that price when you report a dollar figure.
Keep the conclusion within the evidence
- The conversion is exact; it does not fetch a price or a balance.
- ETH has 18 decimal places and BTC has 8. Amounts below 1 wei or 1 satoshi are rejected because they cannot be recorded.
Sources and next reads
- Ethereum.org: denominations of ether
- Ethereum.org: gas and fees
- Bitcoin glossary: satoshi
- Look up a transaction hash
Open the record that shows the gas used and the fee.