What is Wei?
Wei is the smallest unit of Ether (ETH). 1 Ether = 10^18 Wei. It is named after Wei Dai, a computer scientist known for contributions to cryptography.
What is Gwei?
Gwei (Gigawei) equals 10^9 Wei or 0.000000001 ETH. It is commonly used to express Ethereum gas prices, making it easier to read than very large Wei values.
What is a Satoshi?
A Satoshi is the smallest unit of Bitcoin (BTC). 1 Bitcoin = 100,000,000 Satoshi. It is named after Satoshi Nakamoto, the pseudonymous creator of Bitcoin.
Is this tool accurate for large numbers?
Yes. This converter uses BigInt-based arithmetic to handle arbitrarily large integers with full precision, avoiding the floating-point rounding errors common in standard JavaScript number operations.
Is my data safe?
Absolutely. All conversions are performed entirely in your browser using client-side JavaScript. No data is sent to any server.
What is the difference between Kwei, Mwei, and Gwei?
These are metric prefixes applied to Wei: Kwei = 10^3 Wei, Mwei = 10^6 Wei, Gwei = 10^9 Wei. They help express intermediate amounts more conveniently.
Can I convert between ETH and BTC?
This tool converts between units within the same cryptocurrency (ETH units or BTC units). It does not convert between different cryptocurrencies, as that requires real-time market exchange rates.