Tool

Prometheus cardinality estimator

Estimate active series and daily samples so you can catch high-cardinality metrics before they become a storage or billing problem.

Inputs
Targets, metrics per target, label value combinations, and scrape interval.
Output
Estimated active series and samples per day.
Use
Review risky labels before adding them to Prometheus or Mimir.

Active series

Samples per day

Cardinality note

This estimator is intentionally simple. Real series count depends on exporter behavior, churn, relabeling, histograms, and dropped metrics.