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