Telemetry cost estimator
Estimate how much traces, logs and metrics your traffic produces each day, how much storage that needs, and which plan fits it.
How it works
Daily volume is your requests per day times what each request produces: spans times their average size, plus log lines times their size. Metrics add a steady amount per series and scrape.
Storage is the daily volume times the retention period, divided by the compression ratio. Columnar stores like ClickHouse usually compress telemetry between 5 and 15 times.
daily = requests × (spans × span size + logs × log size) + metrics
storage = daily × retention ÷ compressionQuestions
How big is a span?
Usually 300 bytes to 1 KB, depending on how many attributes it carries. Spans with large SQL statements or payloads are bigger.
How can I cut the volume?
Sample traces you don't need in full, drop debug logs in production, and keep high-cardinality values out of metric labels.
Does sampling lose errors?
Head sampling can. Tail sampling, or keeping all error traces, lets you sample the rest without losing failures.