ETH Unit Converter
Convert between Wei, Gwei, and Ether with exact BigInt precision, instantly online. Free Ethereum unit converter — no rounding errors, no sign-up.
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About ETH Unit Converter
Convert between Wei, Kwei, Mwei, Gwei, Szabo, Finney, and Ether instantly — all seven fields stay in sync as you type. • Uses BigInt arithmetic, not floating-point, so large values (like 1 ETH = 1,000,000,000,000,000,000 Wei) are always exact • Quick-fill chips for common values: 1 ETH, a typical 20 Gwei gas price, and the 21000 Wei base gas cost of a simple transfer • Useful for reading gas estimates, RPC logs, and contract values that come back in raw Wei • Runs entirely in your browser — never paste a private key or seed phrase into this or any online tool