ETH to Wei Converter (Exact)
Convert Ethereum (ETH) to wei using the exact formula: 1 ETH = 1,000,000,000,000,000,000 wei. No API, no price feed.
ETH to wei conversion explained
ETH to wei is a fixed unit conversion. Because wei is the smallest denomination of Ethereum, the conversion is always exact. Multiply the ETH amount by 10^18 to get wei.
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Frequently Asked Questions
How many wei are in 1 ETH?
There are exactly 1,000,000,000,000,000,000 wei (1e18) in 1 ETH.
Is ETH to wei conversion exact?
Yes. ETH to wei conversion is a fixed unit conversion, not a market-price conversion.
What is wei?
Wei is the smallest unit of Ethereum. 1 wei equals 0.000000000000000001 ETH (1e-18 ETH).