Mantle block time
As of September 15, 2026, Mantle block time is 1.78 s at the median (p50, 24h window), with 2.72 s at p90 and 2.97 s at p99. Mantle ranks #4 of 10 chains measured on this benchmark.
Mantle block time is 1.78 s (p50, 24h). Mantle is an OP Stack fork with a Mantle Foundation sequencer at the OP Stack 2 s default, but it swaps Ethereum calldata for EigenDA as the data-availability layer, which decouples DA cost from L1 blob price without changing the L2 block cadence the user sees. Measured via `newHeads` inter-arrival on the public Mantle sequencer WebSocket.
How Mantle compares
Live p50 over the last 24 hours across every chain on this benchmark, ranked lowest first.
Methodology, charts and the full ledger live on the Fastest L2 block time, live across Robinhood, Arbitrum, Base and 7 more page. Raw data: JSON endpoint.