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API Pagination Calculator

Calculate API pagination math — page counts, edge items, and rate-budget tradeoffs for cursor vs offset designs before you write code. Code never leaves your device — formatting and validation run locally in your browser.

100% Local Browser Native

How to Use the API Pagination Calculator

1. Fill the inputs

Enter total items with page size.

2. Read page count

Check page count with offsets.

3. Compare scenarios

Duplicate the run with one input changed — the gap between outputs decides it.

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Frequently Asked Questions

Cursor or offset — which?

Cursor for large live datasets (stable); offset for small fixed lists (simple).

How is page size math done?

Total items divided by page size, rounded up — plus edge counts for the last page.

Is my pagination input uploaded anywhere?

No — calculation runs locally in your browser, free with no signup.

Last updated October 2026