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Gwei to ETH Converter

Convert between gwei and ETH instantly, with dollar values and real transaction-cost examples.

1,000,000 gwei
0.001 ETH
≈ $1.80
ETH price
$1,799.01
1 gwei = $0.000001799
Simple transfer at 10 gwei (21,000 gas)$0.38
Simple transfer at 25 gwei (21,000 gas)$0.94
Simple transfer at 50 gwei (21,000 gas)$1.89

Data as of Jul 11, 2026

Estimates only — not financial advice.

How this is calculated

Ethereum's base unit is the wei; 1 ETH = 10¹⁸ wei = 10⁹ gwei. The converter divides or multiplies by one billion, then multiplies by the live ETH price (currently around $1,799) for the dollar figure.

The transfer-cost rows use Ethereum's fixed cost for a simple send — 21,000 gas — times the chosen gas price: cost = gwei × 21,000 ÷ 10⁹ × ETH price. Smart-contract interactions (swaps, mints, bridging) use more gas, often 5–20× that of a plain transfer.

Ethereum units

Unit Per ETH Used for
Wei 10¹⁸ Smallest unit; used internally by the protocol
Gwei 10⁹ Standard unit for gas prices
Ether (ETH) 1 The coin itself

Frequently asked questions

What is gwei?
Gwei is one billionth of an ETH (10⁻⁹). The name is short for giga-wei — one billion wei, the smallest Ethereum unit. Gas prices are quoted in gwei because typical values land in a readable 1–100 range.
How do I calculate a transaction fee from gwei?
Multiply the gas price in gwei by the gas used, then convert to ETH by dividing by one billion. A simple transfer uses 21,000 gas, so at 20 gwei it costs 0.00042 ETH. The table above prices common scenarios at the live ETH price.
Why do gas prices change so much?
Ethereum's fee market reprices every block (~12 seconds) based on demand for block space. Congestion pushes the base fee up automatically and quiet periods bring it back down, which is why the same swap can cost pennies at one moment and much more during a busy mint or market crash.

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Disclaimer: This tool provides educational estimates only — it is not financial, investment, or tax advice. Crypto assets are volatile; past performance does not guarantee future results. See our methodology and full disclaimer.