Monitor real-time Ethereum gas fees with our live tracker. Use our gas fee calculator and historical charts to optimize your transactions on the Ethereum network. Use OKLink's Ethereum Gas Tracker to monitor ETH Gas fees for standard, fast, and slow transactions. You'll see the specific price of each speed and gas guzzlers list, gas spenders list, historical gas oracle price, average gas price. Gas refers to the fee required to successfully conduct a transaction on the Ethereum blockchain. Gas fees are paid in Ether (ETH) and denominated in Gwei. Learn more about Gas in our Knowledge Base. ETH gas fees are transaction costs paid to Ethereum network validators for processing and securing transactions. Every action on the Ethereum blockchain—whether transferring ETH, minting NFTs, or using DeFi protocols—requires computational power.