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API Rate Limit Calculator
Calculate API rate limits and analyze multi-endpoint usage. Start quickly with popular API presets.
Rate Limit Settings
Rate Limit Analysis
RPS
1.39
per second
RPM
83.33
per minute
RPH
5.00K
per hour
RPD
120.00K
per day
Monthly Max Requests
3.60M requests
Safe Operations (80%)
4.00K/Hour
Endpoint Usage Calculator
Calculate total usage when using multiple API endpoints.
= 100/h
β
Within Rate Limit
Total Usage: 100/Hour(2%)
API Call 1100/h (100%)
Daily Total Requests2.40K requests
Popular API Rate Limits
| API | Limit | RPS | RPH |
|---|---|---|---|
| GitHub API | 5000/1h | 1.39 | 5.00K |
| Twitter/X API | 300/15m | 0.33 | 1.20K |
| OpenAI API | 60/1m | 1 | 3.60K |
| Google Maps | 50/1s | 50 | 180.00K |
| Stripe API | 100/1s | 100 | 360.00K |
| Slack API | 1/1s | 1 | 3.60K |
| Discord API | 50/1s | 50 | 180.00K |
| Spotify API | 180/30s | 6 | 21.60K |
| YouTube Data API | 10000/1d | 0.12 | 416.67 |
| SendGrid API | 100/1s | 100 | 360.00K |
π How to Use
- Select an API preset or enter custom values
- Enter current usage to see available headroom
- Add multiple endpoints to calculate total usage
- Keep usage below 80% for safe operation
β¨ Features
- βPopular API rate limit presets
- βCalculate RPS/RPM/RPH/RPD/monthly requests
- βAnalyze headroom against current usage
- βMulti-endpoint total usage calculation
- βVisual rate limit status indicator
π Formula
RPS = Requests Γ· Time(seconds), RPH = RPS Γ 3600π‘ How It Works
- β’Rate limiting protects API servers and ensures fair usage.
- β’RPS (Requests Per Second) is the number of requests processed per second.
- β’Most APIs use hourly (RPH) or per-minute (RPM) limits.
- β’Approaching the limit triggers 429 Too Many Requests errors.
- β’Keep usage below 80% of the rate limit for safe operation.
- β’When using multiple endpoints, sum all requests to check against the limit.
β FAQ
Q. Why are rate limits needed?
A. To prevent server overload, ensure fair resource distribution, defend against DDoS attacks, and manage costs.
Q. What happens when I exceed the rate limit?
A. You receive HTTP 429 error. Wait for the time specified in the Retry-After header before retrying.
Q. Can I increase my rate limit?
A. Options include upgrading to a paid plan, requesting a limit increase, or using multiple API keys.
Q. How do I handle rate limits in code?
A. Implement exponential backoff, request queuing, or token bucket algorithms to respect limits.
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