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Calixo

API Rate Limit Calculator

Convert an API rate limit into requests per second and per day.

Inputs

E.g. 60 for per-minute, 3600 for per-hour.

Saved Scenarios

— select 2+ to compare

Requests/Second

0.278

Requests/Day

24,000

Spark says

How it's calculated

Formula

Requests/sec=LimitWindow (seconds)Requests/sec = \dfrac{Limit}{Window\ (seconds)}
Window
— The rate-limit time window

What is the API Rate Limit Calculator?

API rate limits are usually expressed as N requests per time window — this calculator normalizes that into a per-second rate, useful for comparing different limits or planning request pacing.

How to use it

  1. 1 Enter the request limit.
  2. 2 Enter the time window in seconds.

Worked examples

1,000 requests per hour

About 0.278 requests/second, or 24,000/day if sustained.

Try it

Frequently asked questions

Does this account for bursty traffic?

No — it assumes requests are spread evenly across the window. Many real rate limiters use token-bucket algorithms that allow short bursts above the average rate.