# Block Time

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| Chain               | Block time | Notes                                                     |
| ------------------- | ---------- | --------------------------------------------------------- |
| **Loot Chain**      | \~10-100ms | Depends on transaction throughput, can be arbitrarily low |
| Arbitrum            | \~10-100ms | Depends on transaction throughput, can be arbitrarily low |
| Optimism            | \~10-100ms | Depends on transaction throughput, can be arbitrarily low |
| Ethereum            | 12s        | ​                                                         |
| Polygon             | 2s         | ​                                                         |
| Binance Smart Chain | 5s         | ​                                                         |
| Avalanche           | 3s         | ​                                                         |
| Solana              | 400-600ms  | ​                                                         |
| Tron                | 3s         | ​                                                         |
| Fantom              | 1-3s       | ​                                                         |