API Rate Limit Calculator
Convert rate limits across units, calculate delay between requests for your concurrency, and get a ready-to-use Node.js throttle snippet. Presets for popular APIs.
Rate Analysis
Per second
1.667
Per minute
100
Per hour
6,000
Per day
144,000
Recommended throttle (Node.js)
// Throttle to 1.667 req/s
const DELAY_MS = 600; // ms between calls per worker
const sleep = (ms) => new Promise(r => setTimeout(r, ms));
async function throttledRequest(fn) {
const result = await fn();
await sleep(DELAY_MS);
return result;
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