Privacy Policy

1. Introduction

Welcome to Best Calculators ("we," "our," or "us"). We are committed to protecting your privacy and ensuring transparency about how information is handled when you visit best-calculators.com (the "Site").

This Privacy Policy explains what information is processed when you use our calculators, how cookies and third-party advertising partners (including Google AdSense) operate on the Site, and how you can exercise your privacy rights.

2. Local Browser Calculation Privacy

All calculations performed on Best Calculators—including financial figures, salary and tax estimates, health and fitness metrics, academic grades, and mathematical inputs—are computed 100% locally within your web browser using client-side JavaScript.

• No Server Storage of Calculator Inputs: The numbers and values you enter into our calculators are not sent to, recorded by, or stored on our servers.
• No User Accounts Required: Best Calculators is completely free to use and does not require you to register an account, log in, or submit payment information.

3. Information We Collect

Information You Voluntarily Provide

• Feedback and Communications: If you contact us via email to report an issue, suggest a calculator, or ask a question, we receive your email address and the contents of your message solely to respond to your inquiry.

Information Collected Automatically

• Usage & Analytics Data: We collect aggregated, non-identifying information about how visitors interact with our Site, such as pages visited, time spent on pages, referring URLs, and general geographic region.
• Device & Log Information: Standard web server logs and analytics tools automatically record technical metadata including browser type, operating system, screen resolution, and anonymized IP address for security, performance monitoring, and debugging.

4. Cookies, Google AdSense & Third-Party Advertising

We use cookies, web beacons, and similar technologies to operate the Site, analyze traffic, and fund our free calculators through contextual and personalized advertising.

Google AdSense & DoubleClick DART Cookies

• Third-Party Ad Serving: Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to best-calculators.com or other websites on the internet.
• Advertising Cookies: Google's use of advertising cookies (including the DoubleClick cookie) enables Google and its partners to serve ads to our visitors based on their visit to this Site and/or other sites on the Internet.
• Opting Out of Personalized Advertising: Users may opt out of personalized advertising at any time by visiting Google Ads Settings. Alternatively, you can opt out of a third-party vendor's use of cookies for personalized advertising by visiting www.aboutads.info/choices or www.youronlinechoices.eu (for EEA/UK users).
• How Google Uses Data: To learn more about how Google collects and processes data when you visit partner websites, please review How Google uses information from sites or apps that use our services.

Managing Cookies in Your Browser

You can configure your web browser to refuse all cookies, delete existing cookies, or alert you when a cookie is being set. Our calculators will continue to function even if you disable cookies in your browser.

5. How We Use Information

We use automatically collected technical data and voluntary communications strictly to:

• Provide, maintain, and improve the accuracy and speed of our online calculators
• Understand which calculators and categories are most helpful to visitors
• Display relevant, policy-compliant advertisements that keep the Site free for everyone
• Respond to user questions, bug reports, and correction requests
• Detect, prevent, and resolve technical or security issues
• Comply with applicable legal and regulatory obligations

6. Information Sharing and Disclosure

We do not sell, rent, or trade your personal information. Information may be shared only in the following limited circumstances:

• Infrastructure, Analytics & Advertising Partners: Trusted service providers who assist in operating our website (such as content delivery networks, web analytics, and Google AdSense) process technical data in accordance with their own privacy policies and data protection commitments.
• Legal Compliance & Safety: When required by applicable law, regulation, or valid legal process, or to protect the security, rights, or safety of our users and the Site.

7. Your Privacy Rights (GDPR, UK GDPR & CCPA/CPRA)

Depending on your jurisdiction, including the European Economic Area (EEA), the United Kingdom, Switzerland, and California (USA), you have specific data protection rights:

• EEA, UK & Swiss Visitors (GDPR): You have the right to access, rectify, or erase personal data, restrict or object to processing, and withdraw consent for personalized advertising cookies at any time via our consent controls or browser settings.
• California Residents (CCPA / CPRA): You have the right to know what categories of information are collected, the right to request deletion, and the right to opt out of cross-context behavioral advertising via Google Ads Settings or AboutAds.info.

To exercise any privacy right or submit a data inquiry, contact us at [email protected].

8. Data Security

We use HTTPS encryption across the entire Site and follow modern security practices to protect our infrastructure. Because calculator inputs are evaluated directly in your browser rather than sent over the network, your calculation figures remain private on your device.

9. Third-Party Links

Our Site may reference or link to external educational, governmental, or reference websites. We are not responsible for the content or privacy practices of external sites and encourage you to review their respective privacy policies.

10. Children's Privacy

Our Site provides general-audience educational and utility calculators and does not knowingly collect personal information from children under the age of 13. If you believe a child under 13 has sent personal information to us via email, please contact us and we will promptly delete it.

11. Changes to This Privacy Policy

We may update this Privacy Policy periodically to reflect changes in legal requirements, advertising standards, or Site features. Any updates will be posted on this page with an updated revision date.

12. Contact Us

If you have any questions about this Privacy Policy or our privacy practices, please contact us: