Privacy Policy

Last updated: December 2025

1. Introduction

Definitive Calc ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you visit our website at https://definitivecalc.com. By using our website, you consent to the data practices described in this policy.

2. Information We Collect

We may collect information about you in a variety of ways. The information we may collect includes:

  • Personal Data: Personally identifiable information that you voluntarily provide to us when you contact us through our contact form, including your name and email address.
  • Automatically Collected Data: Information our servers automatically collect when you access the website, such as your IP address, browser type, operating system, access times, pages viewed, and referring website addresses.
  • Cookie Data: Data collected through cookies and similar tracking technologies to enhance your experience, analyze site usage, and serve personalized advertisements.
  • Usage Data: Information about how you interact with our calculators and website features.

3. How We Use Your Information

We may use information collected about you for various purposes, including:

  • To provide, maintain, and improve our calculator services
  • To respond to your inquiries and support requests submitted through our contact form
  • To analyze how you use our website and services to enhance user experience
  • To detect, prevent, and address technical issues and security threats
  • To comply with legal obligations and enforce our terms of service
  • To serve personalized advertisements (as described in Section 5)

Legal Basis for Processing (GDPR): Our legal basis for processing your personal data is Legitimate Interest. We process your data to provide and improve our free calculator services, respond to user inquiries, and maintain website security and functionality.

4. Cookies and Tracking Technologies

We use cookies and similar tracking technologies to track activity on our website and hold certain information. Cookies are files with a small amount of data which may include an anonymous unique identifier. You can instruct your browser to refuse all cookies or to indicate when a cookie is being sent.

Google Analytics: We use Google Analytics to help analyze how users use the site. Google Analytics uses cookies to collect information such as how often users visit the site, what pages they visit, and what other sites they used prior to coming to our site. You can opt out of Google Analytics by installing the Google Analytics Opt-out Browser Add-on.

5. Third-Party Advertising

Google AdSense and DoubleClick: We use Google AdSense to display advertisements on our website. Google, as a third-party vendor, uses cookies to serve ads based on a user's prior visits to this website or other websites on the Internet.

Google's use of advertising cookies enables it and its partners to serve ads to users based on their visit to this site and/or other sites on the Internet. These cookies allow Google to show you personalized advertisements that are more relevant to your interests.

Opt-Out of Personalized Advertising: You may opt out of personalized advertising by visiting Google Ads Settings. Alternatively, you can opt out of some third-party vendors' uses of cookies for personalized advertising by visiting www.aboutads.info/choices.

Please note that opting out does not mean you will no longer receive advertisements. It means that the ads you see will not be personalized based on your browsing history.

6. Data Security

We use administrative, technical, and physical security measures to help protect your personal information. Data submitted through our contact form is handled securely using industry-standard encryption and security protocols.

While we have taken reasonable steps to secure the personal information you provide to us, please be aware that despite our efforts, no security measures are perfect or impenetrable, and no method of data transmission can be guaranteed to be 100% secure.

7. Your Privacy Rights (GDPR - EEA/UK Residents)

If you are located in the European Economic Area (EEA) or United Kingdom, you have certain data protection rights under the General Data Protection Regulation (GDPR):

  • The Right to Access: You have the right to request copies of your personal data that we hold.
  • The Right to Data Portability: You have the right to request that we transfer your personal data to another service or provide it to you in a structured, commonly used format.
  • The Right to Rectification: You have the right to request that we correct any information you believe is inaccurate or incomplete.
  • The Right to Erasure ("Right to be Forgotten"): You have the right to request that we erase your personal data, under certain conditions.
  • The Right to Restrict Processing: You have the right to request that we restrict the processing of your personal data, under certain conditions.
  • The Right to Object to Processing: You have the right to object to our processing of your personal data, under certain conditions.
  • The Right to Withdraw Consent: Where we rely on consent, you have the right to withdraw your consent at any time.

To exercise any of these rights, please contact us through our Contact Us page. We will respond to your request within one month.

8. California Consumer Privacy Rights (CPRA/CCPA)

If you are a California resident, you have specific rights under the California Privacy Rights Act (CPRA) and California Consumer Privacy Act (CCPA):

  • Right to Know: You have the right to know what personal information we collect, use, disclose, and sell.
  • Right to Delete: You have the right to request deletion of your personal information.
  • Right to Opt-Out of Sale or Sharing: You have the right to opt-out of the sale or sharing of your personal information.
  • Right to Non-Discrimination: We will not discriminate against you for exercising your privacy rights.
  • Right to Correct: You have the right to request correction of inaccurate personal information.

Do Not Sell or Share My Personal Information: We do not sell your personal information. However, we may share certain information with third-party advertising partners (such as Google) for advertising purposes. You can opt-out of this sharing by visiting Google Ads Settings or by contacting us through our Contact Us page.

To exercise your California privacy rights, please contact us through our Contact Us page. We will verify your identity before processing your request.

9. Children's Privacy (COPPA)

Definitive Calc is a general audience site and does not knowingly collect personally identifiable information from children under the age of 13. Our services are not directed to children, and we do not knowingly collect personal information from children under 13 years of age.

If you are a parent or guardian and believe that your child under the age of 13 has provided us with personal information, please contact us immediately through our Contact Us page. Upon receiving such a request, we will delete the child's personal information from our records immediately.

We encourage parents and guardians to monitor their children's online activities and to help enforce this Privacy Policy by instructing their children never to provide personal information through our website without their permission.

10. Third-Party Services

We may employ third-party companies and individuals to facilitate our service, provide service on our behalf, perform service-related services, or assist us in analyzing how our service is used. These third parties have access to your information only to perform these tasks on our behalf and are obligated not to disclose or use it for any other purpose.

Third-party services we use include Google Analytics (for website analytics) and Google AdSense (for advertising). Each of these services has its own privacy policy governing the use of your information.

11. Data Retention

We retain your personal information only for as long as necessary to fulfill the purposes outlined in this Privacy Policy, unless a longer retention period is required or permitted by law. When you contact us through our contact form, we retain your information only as long as necessary to respond to your inquiry and provide support.

Automatically collected data (such as IP addresses and usage statistics) may be retained for longer periods for security, analytics, and legal compliance purposes.

12. International Data Transfers

Your information may be transferred to and maintained on computers located outside of your state, province, country, or other governmental jurisdiction where data protection laws may differ. By using our website, you consent to the transfer of your information to facilities located in the United States and other countries where we operate.

13. Changes to This Privacy Policy

We may update our Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last updated" date at the top of this policy.

You are advised to review this Privacy Policy periodically for any changes. Changes to this Privacy Policy are effective when they are posted on this page.

14. Contact Us

If you have any questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us exclusively through our Contact Us page.

For privacy-related inquiries, including requests to access, correct, or delete your personal information, or to exercise your privacy rights under GDPR, CPRA/CCPA, or other applicable laws, please use our contact form and specify the nature of your privacy request.

By using our website, you consent to our Privacy Policy and agree to its terms. If you do not agree with this policy, please do not use our website.