Ethereum Gas Fee Calculator
Estimate gas costs in gwei and USD for ETH transfers, Uniswap swaps, NFT mints, Aave deposits, and more.
Transaction Type
Transaction Speed
Custom Override (Optional)
Estimated Gas Cost
$1.48
0.00042000 ETH
Breakdown
Layer 2 Comparison
Gas prices fluctuate in real time. This estimate uses reference rates. Check etherscan.io/gastracker for live gwei prices before transacting.
Understanding Ethereum Gas Fees
Gas is the unit of computation on Ethereum. Every operation — from a simple transfer to a complex DeFi interaction — consumes a defined amount of gas. You pay gas fees in ETH (gwei) to compensate validators for the computational work. Gas = Gas Limit × Gas Price.
Layer 2 networks (Arbitrum, Optimism, Base) process transactions off-chain and post proofs to Ethereum, reducing fees by 50-100x while inheriting Ethereum's security. For most DeFi activity in 2026, L2s are the recommended choice for cost efficiency.