Gas Fee Calculator
Estimate gas fees across multiple blockchains
Calculator
Leave empty for average
How to Use
Estimate gas fees across blockchains
Select blockchain
Choose network (Ethereum, BSC, Polygon, etc.)
Select transaction type
Choose transfer, swap, NFT mint, etc.
View current gas prices
See slow, average, and fast gas options
Calculate total cost
See estimated fee in native token and USD
Gas Fee Formula
Transaction Fee = Gas Used × Gas Price (gwei) × 10^-9 × ETH Price
Multiply gas units by gas price to get fee in ETH, then convert to USD.
Frequently Asked Questions
Gas fees are transaction costs paid to network validators for processing transactions. On Ethereum, gas is measured in gwei (1 gwei = 0.000000001 ETH). Total fee = gas used × gas price. Simple transfers use ~21,000 gas, while DeFi swaps use 100,000-300,000.
Gas fees increase with network congestion. High demand during NFT mints, DeFi activity, or market volatility causes fee spikes. Layer 2 solutions (Arbitrum, Optimism) offer 10-100x cheaper fees by batching transactions.
Gas fees are typically lowest on weekends and during US night hours (2-6 AM EST). Avoid major NFT drops, token launches, and market crashes. Use gas trackers to monitor prices and set transaction during low-fee periods.
Use Layer 2 networks (Arbitrum, Optimism, Polygon), batch multiple transactions, set lower gas price and wait during low congestion, use DEX aggregators that optimize routes, and avoid transactions during peak hours.