OpenChainBench
Full benchmark: Fastest L1 blockchain finality, live across 11 chains
BlockchainsEthereum

Ethereum finality time

As of July 27, 2026, Ethereum finality time is 15.9 min at the median (p50, 24h window), with 18.4 min at p90 and 19.0 min at p99. Ethereum ranks #8 of 11 chains measured on this benchmark.

Ethereum finality time is 15.9 min (p50, 24h), measured live. Casper FFG finalizes a checkpoint two epochs after it is justified, where each epoch is 32 slots of 12 seconds, which puts the ideal case at about 12.8 minutes. Observed wall-clock finality runs longer because a block lands mid-epoch and waits before the two-epoch countdown starts. Finality is deterministic once reached, but reorgs of unfinalized blocks remain possible before finalization. Measured by polling `eth_getBlockByNumber("finalized")` against `latest` every 10 seconds and reporting the timestamp delta.

How Ethereum compares

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

  1. #1Gram0.4 s
  2. #2SUI0.5 s
  3. #3BNB1.1 s
  4. #4Avalanche1.6 s
  5. #5Stellar7.1 s
  6. #6Solana14 s
  7. #7TRON57 s
  8. #8Ethereum15.9 min
  9. #9Monero19.8 min
  10. #10Litecoin31.7 min
  11. #11Bitcoin60.5 min

Methodology, charts and the full ledger live on the Fastest L1 blockchain finality, live across 11 chains page. Raw data: JSON endpoint.