Privacy Policy

Last updated: July 2026

1. Overview and Commitment to Privacy

At Ratio Calculator ("we", "our", or "us"), accessible from https://ratiocalculator.site, one of our top priorities is the privacy and trust of our visitors. This Privacy Policy document contains comprehensive information regarding the types of information that are collected, recorded, and utilized when you use our free online calculation utilities, educational guides, and website services.

All math, proportion, scaling, and ratio calculations performed on our website are executed locally and entirely within your web browser (client-side JavaScript). We do not collect, process, transmit, or store the numerical values or formulas you input into any calculator tool on our servers.

2. Information We Collect

Like most standard websites, Ratio Calculator collects non-personally identifiable information that web browsers and servers typically make available. This includes:

  • Log Files: Internet Protocol (IP) addresses, browser type, Internet Service Provider (ISP), referring/exit pages, operating system, date/time stamps, and clickstream data to analyze trends, administer the site, and track user movements.
  • Aggregated Usage Data: Pages viewed, time spent on specific calculator tools, bounce rates, and device display dimensions to improve responsive layouts and tool accuracy.
  • Voluntary Communications: Name and email address if you contact our editorial or support team via our contact form or direct email.

3. Third-Party Advertising and Google AdSense

We use third-party advertising companies, including Google AdSense, to serve advertisements when you visit our website. These companies may use cookies, web beacons, and similar tracking technologies to collect information (not including your name, address, email address, or telephone number) about your visits to this and other websites in order to provide advertisements about goods and services of interest to you.

  • Google as a Third-Party Vendor: Google is one of our primary third-party ad vendors. Google uses cookies, including the DoubleClick cookie, to serve ads to visitors based upon their visit to https://ratiocalculator.site and other sites across the internet.
  • Ad Personalization: Google's use of advertising cookies enables it and its partners to serve personalized or contextual ads to your browser.
  • Opting Out of Personalized Ads: You may opt out of personalized advertising by visiting Google's Google Ads Settings. Alternatively, you can opt out of third-party vendor use of cookies for personalized advertising by visiting www.aboutads.info/choices/ or the Network Advertising Initiative.

4. Cookies and Web Beacons

Ratio Calculator uses standard cookies to store information about visitors' preferences, to record user-specific information on which pages the visitor accesses, and to customize our web page content based on visitors' browser type. For detailed information on the specific categories of cookies we employ and how to control them, please review our comprehensive Cookie Policy.

5. Analytics and Measurement Partners

We may work with third-party web analytics partners, such as Google Analytics, to help us measure web traffic and usage trends. These tools collect aggregate information sent by your browser, including the web pages you visit, to help us optimize user experience and calculation performance. Google Analytics processes data in accordance with its privacy standards and offers an opt-out browser add-on available at tools.google.com/dlpage/gaoptout.

6. European Privacy Rights (GDPR)

If you are a resident of the European Economic Area (EEA), the United Kingdom, or Switzerland, you possess specific data protection rights under the General Data Protection Regulation (GDPR), including:

  • Right of Access: You have the right to request copies of your personal data.
  • Right to Rectification: You have the right to request that we correct any information you believe is inaccurate.
  • Right to Erasure: You have the right to request that we erase your personal data under certain conditions.
  • Right to Restrict Processing: You have the right to request restriction of processing your personal data.
  • Right to Object to Processing: You have the right to object to our processing of your personal data, including for direct marketing purposes.
  • Right to Data Portability: You have the right to request transfer of the data collected to another organization.

We process personal data based on legitimate interests (delivering and securing our free calculation service) or consent (for optional analytics/advertising cookies). If you make a request, we have one month to respond to you.

7. California Consumer Privacy Rights (CCPA / CPRA)

Under the California Consumer Privacy Act (CCPA) and California Privacy Rights Act (CPRA), California residents are afforded specific rights regarding their personal information:

  • Right to Know: The categories and specific pieces of personal data collected over the preceding 12 months.
  • Right to Delete: Request deletion of personal information collected from you.
  • Right to Opt-Out of Sale / Sharing: We do not sell your personal information for monetary compensation. You may restrict the sharing of data for cross-context behavioral advertising through our cookie consent banner.
  • Non-Discrimination: We will not discriminate against you for exercising any of your CCPA/CPRA rights.

8. Children's Information (COPPA Compliance)

Protecting children's privacy online is especially important to us. Ratio Calculator provides educational mathematical utilities for general audiences and does not knowingly collect any personally identifiable information from children under the age of 13. If a parent or guardian believes that our website has personal information of a child under 13 in its database, please contact us immediately and we will use our best efforts to promptly remove such information from our records.

9. Data Security and Encryption

We implement industry-standard technical and organizational security measures to protect website interactions. All traffic between your browser and our servers is secured using modern Transport Layer Security (TLS 1.3/HTTPS) encryption. Since calculation inputs remain within your browser runtime, sensitive numerical data is never stored on external databases.

10. External Links

Our website may contain links to external reference sites, educational resources, or partner tools. If you click on a third-party link, you will be directed to that site. Note that these external sites are not operated by us; therefore, we strongly advise you to review the Privacy Policy and terms of these websites.

11. Changes to This Privacy Policy

We may update our Privacy Policy periodically to reflect changes in legal requirements, browser standards, or advertising guidelines. We will notify visitors of any material changes by updating the "Last Updated" date at the top of this page. We encourage you to review this page periodically for any changes.

12. Contact Information

If you have any questions, concerns, or requests regarding this Privacy Policy or your data rights, please contact our data compliance team: