Log storage & retention calculator
Size daily log ingestion and retained storage, or solve how long a fixed capacity lasts.
Steady-rate capacity model only; excludes bursts, tiering, shard rounding, vendor compression, ingestion loss, egress and automatic cost estimates.
Included
- Every visible input and selected unit
- Reconciled intermediate values and result breakdown
- Reproducible URL state
Not included
- Steady-rate capacity model only; excludes bursts, tiering, shard rounding, vendor compression, ingestion loss, egress and automatic cost estimates.
What this means
Size daily log ingestion and retained storage, or solve how long a fixed capacity lasts.
Steady-rate capacity model only; excludes bursts, tiering, shard rounding, vendor compression, ingestion loss, egress and automatic cost estimates.
Intermediate values are not rounded; only the localized display formats the result.
Formula & worked example
stored bytes/day = Σ(events/s × bytes/event) × active seconds × ratio × copies
500 × 800-byte and 100 × 1,200-byte events each second, active all day
- Inputs
- (500 × 800 + 100 × 1,200) × 86,400 = 44.928 GB/day
- Calculation
- 44.928 GB/day × 30 days × 100% × 1 copy
The default steady-rate plan requires 1.34784 TB for 30 days.
How this calculation works
The calculation follows the formulas, definitions and assumptions explained on this page. The references below support the method and any stated boundaries.
Official sources
- NIST — Prefixes for binary multiples — Public definitions and technical semantics used by this calculation