🍪 Legal
Cookie Policy
Last updated: July 15, 2026
Good news: We use zero advertising cookies and zero cross-site tracking. We only use what's needed to make the site work and improve it anonymously.
1 What Are Cookies?
Cookies are small text files stored on your device by a website. We also use browser localStorage (similar to cookies but stays on your device and never transmits to a server) to save your preferences.
2 Cookies We Use
| Cookie / Storage | Purpose | Type | Expires |
|---|---|---|---|
| _ga, _ga_* | Google Analytics — anonymous usage statistics (page views, session duration) | Analytics | 2 years |
| theme (localStorage) | Saves your dark/light mode preference | Essential | Persistent |
| calcHistory (localStorage) | Saves your recent calculation history locally | Essential | Persistent |
| Service Worker Cache | Caches static files (HTML, CSS, JS) for offline use and faster loading | Essential | Until cleared |
We do not use advertising cookies, retargeting cookies, social media tracking pixels, or any cross-site tracking technologies.
3 How to Control Cookies
You can control cookies through your browser settings:
- Chrome: Settings → Privacy and security → Cookies
- Firefox: Settings → Privacy & Security → Cookies
- Safari: Preferences → Privacy → Cookies
- Edge: Settings → Cookies and site permissions
To opt out of Google Analytics specifically, use the Google Analytics Opt-out Browser Add-on.
To clear localStorage data (calculation history, theme preference), clear your browser's site data for percentagescalculator.online.
4 Contact
Questions about cookies? Email us at contact@percentagescalculator.online
🍪 Questions about cookies?