On-chain · L1 + L2 gas

Gas tracker

Live gas prices across Ethereum mainnet and major L2s. Cost estimates assume 21k gas for transfers and 150k gas for a simple Uniswap-v3 swap.

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Chain

Gas (gwei)

Priority

Block t

Transfer · 21k

Swap · 150k

Status

Reading it: Ethereum is labeled low below 20 gwei, moderate 20-50, high above 50. L2s are cheap — anything under 0.1 gwei is essentially free. Priority fees show the actual tip builders are paying (derived via eth_feeHistory). Polygon and BNB use gwei natively but are quoted here for parity.