Privacy Policy

This Privacy Policy explains how 100 Calculator ("100 Calculator," "we," "us," or "our") collects, uses, discloses and safeguards information when you visit www.100calculator.com (the "Site") and use any of our free calculators, including our Women's Health Tools, Health Tools, Finance, Trading, Forex, Crypto, Astrology, Education and Math & Statistics tools (collectively, the "Tools").

By browsing the Site or using any Tool, you acknowledge that you have read and understood this Policy. If you do not agree with any part of it, please discontinue use of the Site.

We collect a limited set of information, grouped below by source:

• Calculator inputs. Figures you type into a Tool (such as dates, weights, account balances, or birth details) are processed directly in your browser to generate a result. We do not transmit or store these inputs on our servers unless a specific Tool's page clearly states otherwise.
• Automatically collected data. Standard technical data such as IP address, browser and device type, operating system, pages viewed, time on page, and referring URL, gathered through server logs and cookies.
• Voluntarily provided data. Information you choose to give us, such as your name and email address when you use a contact form or write to us directly.
• Advertising identifiers. Cookie or device identifiers placed by our advertising partners to support the ads that help keep our Tools free.

We use the information described above to:

• Operate, maintain and improve the Site and the accuracy of our Tools.
• Understand which categories of Tools (e.g. Finance vs. Astrology) are most useful, to guide future development.
• Respond to questions, feedback or support requests you send us.
• Detect, prevent and address technical issues, abuse, or security incidents.
• Serve relevant advertising and measure its performance.
• Comply with applicable legal obligations.

We use cookies and similar technologies to keep the Site running smoothly, remember your preferences, understand usage trends, and support advertising. Cookies fall into four broad groups: essential, analytics, functional, and advertising.

For a full breakdown of every cookie category, retention period, and how to manage your preferences, please see our dedicated Cookie Policy.

We use web analytics services (such as Google Analytics) to understand aggregate, anonymized usage patterns — for example, which calculator categories are most visited or how long a typical session lasts. Analytics data is reported in aggregate and is not used to identify you personally.

You can opt out of Google Analytics tracking using the official Google Analytics Opt-out Browser Add-on, or by adjusting your browser's cookie settings as described in our Cookie Policy.

The Site relies on a small number of third parties to function:

• Advertising networks (e.g. Google AdSense), which may use cookies to serve relevant ads and measure ad performance.
• Affiliate partners in our Finance, Trading, Forex and Crypto categories, where a link may be tracked for referral purposes — see our Disclaimer for details.
• Infrastructure providers, including our hosting/CDN provider and the Font Awesome icon library, loaded from cdnjs.cloudflare.com.

Each third party processes data under its own privacy policy, which we encourage you to review.

We apply reasonable technical and organizational safeguards — including HTTPS encryption in transit and restricted access to any systems that do process personal data — to protect information from unauthorized access, alteration or disclosure. However, no method of transmission or storage is 100% secure, and we cannot guarantee absolute security.

Depending on your location, you may have the right to:

• Request access to the personal data we hold about you.
• Request correction or deletion of that data.
• Object to, or request a restriction of, certain processing.
• Request a portable copy of data you provided to us.
• Opt out of the "sale" or "sharing" of personal data for cross-context advertising, where recognized under laws such as the CCPA.

To exercise any of these rights, contact us using the details in Section 11 below.

The Site is intended for general audiences and is not directed at children under 13. This applies even to categories such as our Women's Health Tools, which are designed for adult use. We do not knowingly collect personal information from children. If you believe a child has provided us with personal data, please contact us so we can promptly remove it.

We may update this Privacy Policy from time to time to reflect changes in our practices, technology, or legal requirements. The "Last Updated" date at the top of this page always reflects the most recent revision. We encourage you to review this page periodically; continued use of the Site after a change is posted constitutes acceptance of the revised Policy.

If you have any questions about this Privacy Policy or how we handle your data, reach out to us: