Privacy Policy - Pythagorean Theorem Calculator

Privacy Policy Statement

Last Updated: September 2026

At pythagoreantheoremcalculator.online, safeguarding user privacy policy standards and data security is a core commitment. This Privacy Policy outlines our data handling practices, client-side non-tracking principles, cookie usage, and your rights under global privacy regulations.

1. Client-Side Non-Tracking Guarantee

Our mathematical calculation tools—including our Hypotenuse, Missing Leg, 3D Spatial Diagonal, and Construction 3-4-5 Calculators—operate 100% locally within your web browser using JavaScript.

Privacy Assurance: Numeric side lengths, mathematical variables, and calculation step breakdowns entered into our calculators are processed strictly in temporary device memory. They are never transmitted, stored, logged, or analyzed on our remote servers.

2. Information Collected via Contact Inquiry

We do not require user account registration, passwords, or personal credentials to access any of our geometry tools. The only scenario where personal information is received is when you voluntarily reach out through our Contact Us Page.

Collected Fields: Full Name, Email Address, Subject Category, and Message Body.
Purpose of Use: Strictly used to answer your question, troubleshoot reported math discrepancies, or respond to feature requests.
Data Retention: Support messages are retained only as long as necessary to address your inquiry, after which they are securely purged. We never sell, rent, or trade email addresses to third parties.

3. Web Server Log Files & Technical Metrics

Like virtually all standard web platforms, our web servers automatically generate standard internet log files when pages are requested. Information recorded includes:

Internet Protocol (IP) address (anonymized where required by law)
Browser type, version, and operating system
Referring page, timestamp, and requested URL resource

Log entries are used solely for server maintenance, security monitoring, network performance optimization, and bot protection. They are never linked to personally identifiable user identities.

4. Local Storage & Cookie Disclosures

We utilize client-side browser storage (`localStorage` and essential cookies) exclusively to enhance user convenience:

User Preference State: Remembering your preferred decimal rounding precision (e.g., 2, 4, or 6 decimal places) or unit selections (meters, feet, inches).
No Cross-Site Tracking: Our essential functional storage does not track your activity across unrelated third-party websites.

For granular details on managing browser storage, please consult our dedicated Cookie Policy.

5. European Rights (GDPR Compliance)

If you reside within the European Economic Area (EEA) or United Kingdom, you hold specific data rights under the General Data Protection Regulation (GDPR):

Right to Access & Portability: Request copies of any personal data submitted via contact forms.
Right to Erasure ("Right to be Forgotten"): Request immediate deletion of your support correspondence history.
Right to Rectification: Request correction of incomplete or inaccurate contact details.
Right to Object & Restrict Processing: Limit how your submitted data is handled.

6. California Consumer Privacy Rights (CCPA / CPRA)

For California residents, privacy standards protect information privacy under the California Consumer Privacy Act (CCPA) and CPRA regarding personal data:

Notice of Non-Sale of Personal Data: pythagoreantheoremcalculator.online does NOT sell, share, or monetize user personal information to data brokers or third-party advertisers.
Right to Delete: Request deletion of contact information submitted through our forms.
Right to Non-Discrimination: Equal service access regardless of whether you exercise privacy rights.

7. Children's Privacy Notice

Our STEM calculators and geometry formula guides are designed to support geometry learning for students of all ages. However, we do not knowingly collect personal information from children under the age of 13. If a parent or guardian believes a child under 13 provided contact details, please notify us via our contact form for immediate removal.

8. Security Standards & Policy Updates

We enforce modern web security safeguards, including full Transport Layer Security (TLS 1.3 / HTTPS encryption), to protect data transmitted between your browser and our servers.

We may update this Privacy Policy periodically to reflect evolving privacy standards or tool features. Any updates will be published on this page with a revised date stamp.

9. Privacy Inquiries

If you have questions regarding this Privacy Policy or wish to exercise your data protection rights, please reach us through our Contact Us Page.