Crypto Unit Converter

How it works

Result = amount × 10^(from exponent − to exponent) · Ethereum: wei 10⁰, gwei 10⁹, ether 10¹⁸ · Bitcoin: satoshi 10⁰, bit 10², mBTC 10⁵, bitcoin 10⁸

Cryptocurrency amounts are defined as whole numbers of a tiny base unit — wei on Ethereum, satoshi on Bitcoin — and every named unit is simply a fixed power of ten of that base. One ether is 10¹⁸ wei; one gwei (used for gas fees) is 10⁹ wei; one bitcoin is 10⁸ satoshi. Because the ratios are exact powers of ten, converting is just sliding the decimal point, which this tool does on the number’s digits directly rather than with floating-point multiplication — so even an amount like one ether in wei (a 19-digit number) comes out exact, with no rounding error or scientific notation.

Worked example

1 ether shifts left 18 − 9 = 9 places to give 1,000,000,000 gwei, and 18 places to give 1,000,000,000,000,000,000 wei (the base unit). On Bitcoin, 1 bitcoin is 10⁸ = 100,000,000 satoshi, and 1 bit (µBTC) is 100 satoshi.

Sources: Ethereum denominations — ethereum.org

Frequently asked questions