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Your grades

Every calculation runs in your browser. Grades, marks and results are kept only in your browser's local storage so the calculator remembers them next time; clear your browser data to remove them. We never receive them. Result images are drawn on your device and nothing is uploaded when you save or share them.

Analytics

We count page views with Vercel Web Analytics, which does not use cookies and does not identify you.

Advertising

The site is free and supported by advertising. Ads are served by Adsterra, which may use cookies or similar technologies to show and measure ads. Ads are kept away from the calculator inputs, and the advertiser never sees your grades.

Last updated 2 Oct 2026.