Convert between BTC, mBTC, bits, satoshis, ETH, Gwei, wei and fiat currencies in real time.
This tool converts between the different units used across crypto, such as BTC and satoshis or ETH, gwei, and wei. It helps anyone reading on-chain data, setting gas, or handling small amounts avoid mistakes when moving between denominations.
Each blockchain defines fixed subunits, so conversions are exact multiplications or divisions by powers of ten rather than market rates. One bitcoin equals 100 million satoshis, and one ether equals one billion gwei or a billion-billion (ten to the eighteenth) wei.
One bitcoin is divisible into 100,000,000 satoshis, so a satoshi is the smallest unit of bitcoin. This lets bitcoin be transacted in very small fractions despite a high price per whole coin.
Gwei is a denomination of ether commonly used to express gas prices, where one ether equals one billion gwei. Wei is the smallest unit, with one ether equal to ten to the eighteenth power wei.
On-chain values and fees are often shown in the smallest units, so misreading a denomination can lead to sending the wrong amount or setting an incorrect fee. Converting to a familiar unit helps confirm you are working with the number you intend.