About Pro Rata Calculator

A collection of free online tools. No accounts, no server uploads, no bullshit.

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What We Build

Pro Rata Calculator provides a set of utilities for common tasks. Each tool runs entirely in your browser. Nothing is uploaded to a server, which means your data stays private and the tools work fast.

Why These Tools

We built Pro Rata Calculator to consolidate useful utilities into one place that loads quickly and gets out of your way. No feature bloat, no pricing tiers, no account walls. Open the page, do your work, close the tab.

How It Works

• All processing happens client-side in JavaScript. No server round-trips, no API keys needed.
• No sign-up or login. The tools are accessible the moment you land on the page.
• No analytics trackers beyond basic traffic counting. We do not track individual users.
• Open source libraries where applicable; credit is given on each tool page.

Contact

Questions, bug reports, or tool requests? Reach out via the Contact page.