Limits
| Feature | Limit |
|---|---|
| Databases | 50,000 (Workers Paid) / 10 (Free) |
| Maximum database size | 10 GB (Workers Paid) / 500 MB (Free) |
| Maximum storage per account | 250 GB (Workers Paid)1 / 5 GB (Free) |
| Time Travel duration (point-in-time recovery) | 30 days (Workers Paid) / 7 days (Free) |
| Maximum Time Travel restore operations | 10 restores per 10 minute (per database) |
| Queries per Worker invocation (read subrequest limits) | 50 (Bundled) / 1000 (Unbound) |
| Maximum number of columns per table | 100 |
| Maximum number of rows per table | Unlimited (excluding per-database storage limits) |
Maximum string, BLOB or table row size |
1,000,000 bytes (1 MB) |
| Maximum SQL statement length | 100,000 bytes (100 KB) |
| Maximum bound parameters per query | 100 |
| Maximum arguments per SQL function | 32 |
Maximum characters (bytes) in a LIKE or GLOB pattern |
50 bytes |
| Maximum bindings per Workers script | Approximately 5,000 2 |
| Maximum SQL query duration | 30 seconds |
1 The maximum storage per account can be increased by request on Workers Paid and Enterprise plans. See the guidance on limit increases on this page to request an increase.
2 A single Worker script can have up to 1 MB of script metadata. A binding is defined as a binding to a resource, such as a D1 database, KV namespace, environmental variable or secret. Each resource binding is approximately 150-bytes, however environmental variables and secrets are controlled by the size of the value you provide. Excluding environmental variables, you can bind up to ~5,000 D1 databases to a single Worker script.