Privacy

Calculations

All calculators run entirely in your browser. The numbers you type are not sent to us.

Saved in your browser

The square footage calculator remembers your list of areas, unit, waste percentage and price in your browser's localStorage so they are still there next time. This stays on your device; we never receive it.

Clear saved data

AI tutor

If you press "Explain it step by step", the problem you typed is sent to our server and on to an AI model through Vercel AI Gateway to generate the answer. We don't store it or link it to you. Don't include personal information in your question. A short-lived, in-memory counter of requests per IP address prevents abuse and is discarded automatically.

Analytics

We use Ahrefs Web Analytics, a cookieless, privacy-friendly analytics service, to count page views and see which calculators are useful. It does not use cookies or build advertising profiles.

Hosting

The site is hosted on Vercel, which keeps standard server logs (such as IP address and user agent) for security and operations.