Estimated RPS
62.5
RPS calculator: concurrent users to throughput
Estimate requests per second from concurrent users and flow behavior, or convert target throughput into concurrent users for planning.
Calculator
Results
Estimated concurrent users
100
Throughput per minute
3,750 RPM
Cycle duration
3.2 seconds
This is a simplified estimate. Queueing, retries, async behavior and infrastructure bottlenecks can change observed throughput.
What this calculator does
It converts concurrent users and request flow behavior into an estimated throughput value, or performs the reverse conversion using the same cycle assumptions.
Formula used
cycle_seconds = (response_time_ms / 1000) + think_time_seconds
RPS = (users * requests_per_flow) / cycle_seconds
users = (RPS * cycle_seconds) / requests_per_flowThis model assumes each user repeats the same flow and that response + think time define one cycle.
When to use it
Use this estimate when defining load test entry points, discussing service limits, or translating business traffic goals into engineering test numbers.
FAQ
Is this Little's Law?
It is inspired by throughput-concurrency relationships but simplified for practical planning.
Should think time be included?
Yes. Without think time, user-driven flows are usually overestimated.
Can I use p95 latency instead of average?
You can, but the estimate becomes more conservative.