Unit Converter
Runs offlineConvert between wei, gwei, ether and any token decimals.
10⁰
10⁹ · gas prices
10¹⁸
USDC is 6, WBTC is 8
Exact integer value: 1000000000000000000 base units. Every conversion above is done in integer arithmetic, so nothing is rounded.
About unit converter
Ethereum stores every amount as an integer. One ether is 10¹⁸ wei, gas prices are quoted in gwei (10⁹ wei), and every ERC-20 picks its own number of decimals — USDC uses 6, WBTC uses 8, most others use 18. Getting that exponent wrong is how people accidentally send a thousand times too much. This converter does the arithmetic in integers rather than floating point, so a value with eighteen significant digits survives the round trip intact.