Gas Fee Checker
Our gas fee checker reads live data from public RPCs—no API keys. It shows base fee + priority tip (or gas price) for Ethereum, BNB Chain, Arbitrum, Base, Optimism, plus fees for Solana and Cardano. Choose ERC-20 transfer, DEX swap, or NFT transfer to see an instant estimate in USD. (For L2s, you can add a rough L1 data cost with the toggle.)
Gas & Fee Snapshot
What is a gas fee checker?
A simple widget that reads live fees from public RPCs (no API keys) and shows the current cost (in native token and USD) for ERC-20 transfers, DEX swaps, and NFT transfers.
Why are L2 totals sometimes higher than shown?
Because L2s charge two parts: the L2 execution gas plus an extra L1 data-posting fee. The widget shows L2 gas by default; turn on “Include L1 data (rough)” to add a ballpark of that extra cost.
Which chains are included?
Ethereum, BNB Chain, Arbitrum One, Base, Optimism, Solana, and Cardano.
