Privacy Policy

This Privacy Policy explains how TrapezoidCalculator.com (“we”, “us”, “our”) handles information when you use our website and calculators.

What we collect

• Usage data: aggregated metrics (e.g., page views, device type, approximate region) to improve performance and UX.
• Server logs: standard web logs (IP address, user-agent, timestamps) used for security and reliability.
• Messages you send: if you contact us via the contact page, we receive what you submit.

What we do not collect by default

• No user accounts or passwords are required to use the calculators.
• No financial, government ID, or payment data.
• No persistent storage of your calculator inputs beyond what’s necessary to render results in your session.

How we use information

• Provide, maintain, and improve the calculators (e.g., unit handling, rounding, UI ergonomics)
• Protect the service, prevent abuse, and troubleshoot issues
• Respond to messages you send

Legal bases (EEA/UK)

• Legitimate interests for basic analytics, security, and service improvement
• Consent where required (e.g., non-essential cookies, newsletter if ever offered)

Retention

Contact messages are kept as long as needed to respond and maintain records. Logs/analytics are kept for a limited period consistent with security and operations.

Sharing

We do not sell your personal information. We may share limited data with trusted providers (hosting, security, analytics) bound by confidentiality and data-protection obligations. We may disclose information if required by law or to protect rights, safety, or integrity of the service.

Your choices & rights

• You can use the calculators without creating an account.
• If you’re in the EEA/UK, you may have rights to access, correct, delete, or restrict processing. To exercise rights, contact us via the contact page.
• California residents may have rights under the CCPA/CPRA; you can reach out to make a request.

Cookies & analytics

If we use analytics, we prefer privacy-respecting tools and minimal data. If any non-essential cookies are introduced, we will provide notice/controls where required by law.

Data security

We take reasonable technical and organizational measures to protect information. No internet service is 100% secure, but we work to keep risk low.

Children

This site is not directed to children under 13 (or the age required by local law). If you believe a child provided personal information, please contact us so we can delete it.

Changes

We may update this policy from time to time. If changes are material, we’ll take reasonable steps to notify you (e.g., a site banner).

Contact

Questions about privacy? Reach us via the contact page.

Last updated: November 4, 2025