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Requests per Second

Free Requests per Second calculator with clear step-by-step results.

About Requests per Second

Throughput per second and the theoretical capacity from concurrency and latency.

Formula

Formula

RPS = requests ÷ 60; capacity = concurrency ÷ latency

Worked example

With the default values below, Requests per Second returns Requests per Second of 2,000.0. Change any input above and every figure here is recalculated in your browser.

Inputs used

Requests (per minute)minimum 1
120,000
Peak concurrencyminimum 1
500
Average latency (ms)minimum 1
150

Results

Requests per Second
2,000.0
Capacity (latency-based)
3,333.3
Utilization
60.0%

Step by step

  1. 1Values used
  2. 2Formula
  3. 3Requests per Second= 2,000.0
  4. 4Capacity (latency-based)= 3,333.3
  5. 5Utilization= 60.0

Assumptions and limits

  • The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 1 decimal place, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How does this calculator work?

Throughput per second and the theoretical capacity from concurrency and latency.

Why does this matter?

Little's Law relates concurrency, latency and throughput.

Requests per Second – Calculate Requests per Second