Object Storage Cost Calculator

Estimate your monthly object storage costs based on your workload parameters.

• Hetzner
• AWS S3
• GCS
• Azure Blob (on roadmap)

Fsn1 / Nbg1 / Hel1, S3-compatible.

Message rate (msgs/sec) i

Average message size (bytes) i

Partitions i

Storage-tier consumers i

Retention (days) i

Target object size (MiB) i

Flush interval (seconds) i

Compression ratio i

	Count/month	Cost/month
Base fee		—
PUT	—	—
GET	—	—
LIST	—	—
Storage	—	—
Total		—

Data rate: —On disk: —Objects flushed: —/month

Pricing reference

What drives costs

Storage dominates — typically 90%+ of total cost. API costs only matter at very high throughput.

The main API cost driver is object store reads: consumers fetching data that’s been evicted from the on-disk WAL because KLITE_WAL_MAX_DISK_SIZE was exceeded and must be read back from object storage.

Data transfer: if klite runs in the same region as the bucket, there are no transfer costs. Running outside the provider’s network incurs egress fees (~$0.09/GB) when consumers fetch WAL-evicted data. Writes are always free (ingress is $0).