Ethereum Gas Fee Estimator
Live ETH gas prices in Gwei and USD. Calculate exact transaction costs for ETH transfers, token swaps, NFT mints, and smart contract interactions.
Transaction Type
Fetching live gas prices…
Common Gas Limits Reference
| Operation | Gas Units |
|---|---|
| ETH Transfer | 21,000 |
| ERC-20 Transfer | 65,000 |
| Uniswap Swap | 1,50,000 |
| NFT Mint | 2,00,000 |
| Smart Contract | 3,00,000 |
What are Ethereum Gas Fees?
Gas fees are the cost to execute transactions on the Ethereum blockchain. Every action — sending ETH, swapping tokens, minting NFTs — requires computational work measured in "gas units." You pay gas fees in ETH (denominated in Gwei, where 1 Gwei = 0.000000001 ETH).
Since the EIP-1559 upgrade, gas fees consist of a base fee (burned) plus a priority tip to validators. The base fee adjusts dynamically based on network congestion.
Frequently Asked Questions
Why are Ethereum gas fees so high?
Gas fees rise when the network is congested — more transactions compete for block space, pushing up the base fee. High demand from DeFi, NFT mints, and token launches often causes gas spikes.
What is Gwei?
Gwei is a denomination of ETH. 1 ETH = 1,000,000,000 Gwei. Gas prices are quoted in Gwei because they are tiny fractions of ETH. 20 Gwei means you pay 0.00000002 ETH per unit of gas.
How can I reduce Ethereum gas fees?
Wait for off-peak times (typically late US nights, weekends), use Layer 2 networks like Arbitrum or Optimism (90%+ cheaper), set a lower gas price and wait longer, or use gas tokens when available.
What is the difference between gas price and gas limit?
Gas price is what you pay per unit of gas (in Gwei). Gas limit is the maximum units of gas your transaction can consume. Total fee = gas price × gas used. Simple ETH transfers use exactly 21,000 gas units.
Gas data is fetched from Etherscan and refreshed every 30 seconds. Prices are estimates — actual fees may vary based on network conditions at time of transaction.