Cookie Policy
Effective as of April 22 2026
What Are Cookies?
Cookies are small text files that are sent to your web browser when you visit a website. They are stored in your browser and help the website recognize you on return visits, making your experience easier and more useful.
We also use Local Storage, which is similar to cookies. It allows us to save your preferences on your device without sending data back to our servers on every visit.
How We Use Local Tech
We do not use cookies to identify you personally. We use Local Storage for two purposes:
A. Essential UI Preferences
We save your display preferences locally on your device. Our servers do not collect this information.
- We save whether you prefer Light Mode or Dark Mode.
- We remember whether you expanded or collapsed sections of the website.
- We store the units you last used so you don't have to reselect them.
B. Advertisements (Adsterra)
Our website displays non-intrusive advertisements served via Adsterra to keep all tools on Master Calculate 100% free without subscriptions:
- Adsterra serves standard contextual advertisements based on general device characteristics and region (GEO) without tracking your cross-site personal identity profiles.
- Advertising is essential for supporting our free calculators and tools and remains active for all users.
Managing Your Consent Preferences
You can manage your consent preferences at any time using our on-site Cookie Consent Manager or your browser settings:
- Analytics & Performance: You can choose whether to allow Google Analytics tracking via our on-site Cookie Manager (accessible via the floating cookie icon at the bottom-right of your screen).
- Browser Controls: You can also clear local storage or block cookies directly in your browser settings.
Contact Us
If you have any questions about our cookie practices, please contact us.
Email Support