1. Introduction

Welcome to CalculateDIY.com ("we," "our," or "us"). We are committed to protecting your personal information and your right to privacy. This Privacy Policy describes how we collect, use, and share information when you use our website at calculatediy.com (the "Site").

By using our Site, you agree to the terms of this Privacy Policy. If you do not agree with the terms of this policy, please do not access the Site.

2. Information We Collect

Information You Provide

We only collect information you voluntarily provide to us — for example, if you contact us via our contact form. This may include your name and email address. We do not require account creation to use any calculator on this Site.

Automatically Collected Information

When you visit our Site, we may automatically collect certain information, including:

• Log data: IP address, browser type and version, operating system, referring URL, pages visited, and time spent on pages.
• Device information: Hardware model, operating system and version, unique device identifiers, and mobile network information.
• Usage data: Information about how you interact with our calculators, including which tools you use and calculation inputs (but we do not store individual calculation results tied to you personally).
• Cookies and tracking technologies: We use cookies and similar tracking technologies to track activity on our Site. See Section 6 below for more details.

3. How We Use Your Information

We use the information we collect to:

• Operate and maintain the Site and its calculators
• Improve, personalize, and expand our Site
• Understand and analyze how you use our Site
• Develop new features, products, and functionality
• Communicate with you, either directly or through a third party, for customer service or to provide updates
• Send you emails if you have opted in to receive them
• Find and prevent fraud
• Comply with applicable laws and regulations
• Serve relevant advertisements through Google AdSense and other advertising partners

4. Sharing of Your Information

We do not sell your personal information. We may share your information in the following situations:

• Service Providers: We may share your information with third-party vendors and service providers that perform services on our behalf, such as analytics, advertising, and web hosting.
• Business Transfers: If we merge with or are acquired by another company, your information may be transferred as part of that transaction.
• Legal Requirements: We may disclose your information if required to do so by law or in response to valid legal requests.
• Protection of Rights: We may disclose your information to protect the rights, property, or safety of CalculateDIY.com, our users, or the public.

5. Third-Party Services

Google Analytics

We use Google Analytics to analyze how visitors use our Site. Google Analytics collects information such as how often users visit the Site, what pages they visit, and what other sites they used prior to coming to the Site. We use this data to improve our Site. Google Analytics collects the IP address assigned to you on the date you visit the Site. We do not combine information collected through Google Analytics with personally identifiable information.

You may opt out of Google Analytics by installing the Google Analytics Opt-out Browser Add-on.

Google AdSense

We use Google AdSense to display advertisements on our Site. Google may use cookies to serve ads based on your prior visits to our Site or other sites. You can opt out of personalized advertising by visiting Google's Ads Settings.

Amazon Associates

CalculateDIY.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. When you click on Amazon product links on our Site, Amazon may use cookies to track your visit. Amazon's privacy policy can be found at amazon.com/privacy.

6. Cookies

We use cookies and similar tracking technologies to track activity on our Site and store certain information. Cookies are files with a small amount of data that may include an anonymous unique identifier. You can instruct your browser to refuse all cookies or to indicate when a cookie is being sent. However, if you do not accept cookies, some parts of our Site may not function properly.

Types of cookies we use:

• Essential cookies: Required for the Site to function properly.
• Analytics cookies: Used by Google Analytics to track site usage.
• Advertising cookies: Used by Google AdSense to deliver relevant advertisements.
• Functional cookies: Used to remember your preferences (e.g., unit system selection).

You can manage your cookie preferences using the cookie consent banner on our Site, or by adjusting your browser settings.

7. Your Privacy Rights

GDPR (European Union Residents)

If you are a resident of the European Economic Area (EEA), you have the following rights regarding your personal information:

• Right to access: Request a copy of the personal information we hold about you.
• Right to rectification: Request correction of any inaccurate personal information.
• Right to erasure: Request deletion of your personal information.
• Right to restrict processing: Request that we restrict processing of your personal information.
• Right to data portability: Request transfer of your personal information to you or a third party.
• Right to object: Object to our processing of your personal information.
• Right to withdraw consent: Withdraw consent at any time where we relied on consent to process your information.

To exercise any of these rights, please contact us at the email address provided in Section 11 below.

CCPA (California Residents)

Under the California Consumer Privacy Act (CCPA), California residents have the right to:

• Know what personal information is being collected about you.
• Know whether your personal information is sold or disclosed and to whom.
• Say no to the sale of your personal information.
• Access your personal information.
• Not be discriminated against for exercising your privacy rights.

We do not sell personal information. To submit a CCPA request, please contact us at the address in Section 11.

8. Children's Privacy

Our Site is not directed at children under the age of 13. We do not knowingly collect personally identifiable information from children under 13. If you are a parent or guardian and you believe your child has provided us with personal information, please contact us so that we can delete such information.

9. Data Security

We implement reasonable technical and organizational measures to protect the information we collect from loss, misuse, unauthorized access, disclosure, alteration, and destruction. However, please note that no method of transmission over the Internet or method of electronic storage is 100% secure, and we cannot guarantee absolute security.

Our calculators process all calculations locally in your browser. We do not transmit your calculation inputs to our servers.

10. Changes to This Policy

We may update this 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. We encourage you to review this Privacy Policy periodically for any changes. Your continued use of the Site after changes to this Privacy Policy are posted constitutes your acceptance of the updated policy.

11. Contact Us

If you have any questions about this Privacy Policy, or if you would like to exercise any of your privacy rights, please contact us:

• Website: calculatediy.com/contact/
• Email: [email protected]

12. Disclaimer

All calculators on CalculateDIY.com are provided for informational and educational purposes only. Results are estimates and should not be used as a substitute for professional advice. Always consult a qualified professional — including licensed contractors, engineers, electricians, or plumbers — before beginning any construction or home improvement project.