Convert between the three units developers use most on Ethereum, wei, gwei and ether, all at the same time. Wei is the base unit, gwei is one billion wei and is used for gas prices, and ether is the human facing unit at ten to the eighteenth wei. Type a number into any of the three fields and the other two update live, so you can go from a raw wei balance to a readable ether figure, or from a gwei gas price to its wei and ether equivalents, without hunting for a calculator. The tool uses string based arbitrary precision so huge wei values never lose accuracy to floating point rounding. This is ideal for contract debugging, decoding calldata, or sanity checking a wallet balance. All math runs locally in your browser and nothing is sent anywhere.
It converts across wei, gwei and ether at once. One ether is 10 to the 9th gwei and 10 to the 18th wei.
Yes. Enter a value in any one field and the other denominations update together so you can read every unit at a glance.
Yes. Values are handled as exact integers in wei, so conversions between units never introduce rounding errors.
Convert between the three units developers use most on Ethereum, wei, gwei and ether, all at the same time. Wei is the base unit, gwei is one billion wei and is used for gas prices, and ether is the human facing unit at ten to the eighteenth wei.
Yes. Ethereum Unit Converter is completely free, with no sign-up and no usage limits.
Yes. Ethereum Unit Converter runs in any modern web browser. There is nothing to download or install.
Yes. Ethereum Unit Converter runs entirely on your device in your browser, so nothing you enter is uploaded to a server.