OpenChainBench
Full benchmark: Fastest L2 block time, live across Arbitrum, Base, Optimism and 6 more
BlockchainszkSync Era

zkSync Era block time

As of June 17, 2026, zkSync Era block time is 4.60 s at the median (p50, 24h window), with 22.60 s at p90 and 51.00 s at p99. zkSync Era ranks #8 of 9 chains measured on this benchmark.

zkSync Era block time is 4.60 s (p50, 24h). zkSync Era is a zk-rollup with a Matter Labs-operated sequencer; block production is batched because the prover must generate a SNARK before the batch is finalized on Ethereum, so within a busy burst blocks land near 1 s but the median drifts up during quiet periods when the sequencer waits to fill a batch. Measured via the `era.zksync.io/ws` WebSocket and `newHeads` inter-arrival deltas.

How zkSync Era compares

Live p50 over the last 24 hours across every chain on this benchmark, ranked lowest first.

  1. #1Arbitrum One251 ms
  2. #2Base2.00 s
  3. #3Blast2.00 s
  4. #4Optimism2.00 s
  5. #5Mantle2.00 s
  6. #6Taiko2.17 s
  7. #7Linea3.83 s
  8. #8zkSync Era4.60 s
  9. #9Scroll8.22 s

Methodology, charts and the full ledger live on the Fastest L2 block time, live across Arbitrum, Base, Optimism and 6 more page. Raw data: JSON endpoint.