API Rate Limit Calculator
Requests per second your app needs.
Enter your values
ⓘ Live results
Results
- Peak requests per second
- 114.4
- Average RPS
- 27.78
- Headroom on plan
- -14.4%
- Status
- Will be throttled
Quick answer
Peak request rate is far higher than the daily average, so size limits on the peak.
Peak RPS = daily ÷ 86400 × peak factor
How to use the API Rate Limit Calculator
- 1Enter your daily request volume.
- 2Set a peak factor for busy hours.
- 3Add expected retry overhead.
Worked example
Using the values the calculator loads with:
Inputs
- Daily requests2400000
- Peak factor4
- Retry rate3 %
- Your plan limit100 rps
Results
- Peak requests per second114.4
- Average RPS27.78
- Headroom on plan-14.4%
- StatusWill be throttled
Frequently asked questions
What peak factor should I use?
3–5× average for consumer apps with a daily usage curve.
Do retries count?
Yes — failed requests usually consume quota too.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.