API Rate Limit Budget Planner
Plan request throughput within a quota and reserved allowance.
Your inputs
Calculation results
Formula & assumptions
Usable rate = quota × (1−reserve)/window; equally divide among clients.
Values use the specified units. Calculations use floating-point arithmetic. Check input measurements and formula assumptions before applying the result.
Compare your scenarios
Save up to five results to compare changes side by side. Scenarios stay in this tab until you clear or reload it.
Using API Rate Limit Budget Planner
Plan request throughput within a quota and reserved allowance.
- Enter quota, window length, reserved allowance, concurrent clients using the units printed under each field.
- Choose Calculate, or enable live updates. Review the result labels and formula assumptions.
- Save scenarios to compare up to five variations, then copy the report or download JSON or CSV.
Example
Quota: 1000 requests Window length: 60 seconds Reserved allowance: 10 percent Concurrent clients: 5 clients Usable requests per second: 15 Per-client requests per second: 3 Minimum interval per client · milliseconds: 333.33333
Questions & answers
What does API Rate Limit Budget Planner calculate?
Plan request throughput within a quota and reserved allowance.
Which units should I enter?
Quota uses requests. Window length uses seconds. Reserved allowance uses percent. Concurrent clients uses clients. Convert values to these units before calculating.
Which formula does it use?
Usable rate = quota × (1−reserve)/window; equally divide among clients.
What does the included example show?
Quota: 1000 requests; Window length: 60 seconds; Reserved allowance: 10 percent; Concurrent clients: 5 clients. Result: Usable requests per second = 15; Per-client requests per second = 3; Minimum interval per client · milliseconds = 333.33333.
Can I compare different settings?
Yes. Save a scenario, change the inputs and save another result. Up to five scenarios are compared in this tab; they disappear when you reload or leave.
Can I export the calculation?
Copy the JSON report or download JSON and CSV with inputs, result labels and numeric values. Processing uses local JavaScript; no calculation request is sent to our server. Displayed values use up to 10 significant digits; exports retain JavaScript numeric precision.
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