How this calculator works
Enter messages per second, average message bytes, retention hours, replication factor. CalcStack applies the displayed formula and reports each intermediate planning value with the units shown.
Formula / method
Storage = messages/s × average bytes × retention seconds × replication
Worked example
Use the documented default inputs to model message queue retention.
Assumptions and limitations
Inputs represent stable average operating conditions and the displayed equation applies.
This is a planning model; real systems and measurements can require domain-specific corrections.