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Ethereum Gas Fee Calculator

Calculate the ETH and USD cost of an Ethereum transaction from gas limit and gas price. For educational purposes only. Not financial advice.

Simple transfer = 21,000 · ERC-20 transfer ≈ 65,000 · Uniswap swap ≈ 150,000
Base fee + priority tip in Gwei. Check Etherscan Gas Tracker for current levels.
Current ETH price in USD. For educational purposes only.

Results

Gas Fee (USD)$1.8,900
Gas Fee (ETH)0.00,063,000 ETH
Total Gas (Gwei)630,000

📖What is it?

Ethereum gas fees are the cost to execute transactions on the network. Fee (ETH) = Gas Limit × Gas Price (Gwei) ÷ 1,000,000,000. Since EIP-1559, the fee structure has a base fee (burned) plus a priority tip (to validator). Gas Limit is set by the transaction type; Gas Price fluctuates with network demand. For educational purposes only — not financial advice.

🎯How to use

Enter the gas limit for your transaction type, the current gas price in Gwei (check Etherscan Gas Tracker), and the current ETH price. The calculator shows the fee in both ETH and USD.

💡Example scenario

A simple ETH transfer (21,000 gas) at 30 Gwei with ETH at $3,000: Fee = 21,000 × 30 / 1e9 = 0.00063 ETH = $1.89. A Uniswap v3 swap (150,000 gas) at the same price: $13.50. During network congestion at 100 Gwei, the swap costs $45.

🏆Pro tip

Gas prices follow a predictable daily pattern — lowest on weekend mornings (UTC) and highest on weekday afternoons when US/EU markets overlap. Use layer-2 networks (Arbitrum, Optimism, Base, zkSync) for small transactions — the same swap costs $0.05–0.20 on L2 vs. $10–50 on mainnet. Gas tokens and transaction batching further reduce costs for power users.