Convert any API rate limit (per second, minute, hour, day, or month) into daily and monthly quotas instantly. Free, no sign-up. Great for planning API usage and choosing the right plan tier.
Added May 11, 2026
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Enter a value for rate limit value to see your result.
Converts any API rate limit (per second, minute, hour, day, or month) into equivalent quotas across all time periods. Use it to plan request throughput, check if your usage pattern fits under a plan limit, or estimate monthly call volumes before choosing an API tier.
Daily quota = (Limit ÷ Period seconds) × 86 400
A 100 req/min plan allows 1.67 requests per second sustained and 144,000 requests per day — about 4.3M per month.
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10 req/s for 8 active hours yields 288,000 per day and ~6.3 M per month on a 22-day work schedule.
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An API rate limit caps the number of requests a client can make within a defined time window. Common formats include 100 requests per minute, 1 000 requests per hour, or 10 requests per second. Exceeding the limit usually returns HTTP 429 Too Many Requests.
RPS stands for requests per second — the most granular unit of API throughput. Even if your plan states a per-minute or per-hour limit, converting to RPS helps you design back-off logic and ensures your sustained request rate never consumes the budget too quickly.
The simplest approach is to insert a small delay between requests: delay_ms = 1 000 ÷ rps. For burst-heavy workloads, use a token bucket or leaky-bucket algorithm in your request queue to smooth traffic and absorb short spikes without hitting the cap.
Rate limiting enforces a hard cap — requests over the limit are rejected with HTTP 429. Throttling usually slows requests down rather than rejecting them — you still receive responses, just more slowly. Both are server-enforced; the quota math is the same from the client side.
If your service only runs during business hours (e.g. 8 h/day), your per-second or per-minute quota produces the same daily allowance — but you're spending it in a shorter window. Setting active hours to 8 shows the lower safe RPS you can sustain without exhausting the daily quota before business hours end.