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ETH Gas Fee Estimator

Convert gas price (gwei) × gas limit to fee in ETH and USD. Manual input works offline. “Auto-Fetch” tries to pull live gwei and ETH price (if public endpoints allow).

Fee in ETH

~0.000000 ETH

Fee in USD

$0
Auto-fetch depends on public APIs and may fail due to CORS/rate limits. Manual gwei entry always works.

How to Use

  1. Enter Gas Price (gwei) and Gas Limit (e.g., 21000 for a simple transfer).
  2. Optionally update ETH price (USD) or use Auto-Fetch to get live values.
  3. Click Calculate — fee = gwei × 1e-9 × gasLimit (ETH), and USD = fee × price.

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