Privacy Policy

1. Our Privacy Commitment

Tank Volume Calculator is committed to protecting your privacy. As engineering professionals, we understand the importance of data security and privacy. Our calculators are designed with privacy-first principles from the ground up.

2. What Information We Collect

Minimal Data Collection: We collect the absolute minimum information necessary:

• Contact Information: Only when you email us at [email protected], we receive your email address and message content
• Technical Data: Basic, anonymous server logs for security and maintenance (IP address, browser type, access time)
• Cookies: Essential session cookies only for website functionality

What We Do NOT Collect:

• ❌ Your calculation inputs or results
• ❌ Personal identification beyond contact emails
• ❌ Location data or browsing history
• ❌ Financial or payment information

3. Local Browser Processing

Our most important privacy feature: All calculations happen in your browser.

• Client-Side Computation: When you enter tank dimensions, calculations are performed entirely on your device using JavaScript
• No Server Transmission: Your input data never leaves your computer or device
• Immediate Deletion: Calculation data is cleared when you refresh or leave the page
• Mathematical Integrity: All formulas and calculations are embedded in the page code for local execution

4. How We Use Your Information

When you contact us, we use your information only for:

• Support Responses: Answering your technical questions
• Improvement: Understanding user needs to improve our calculators
• Communication: Responding to your inquiries (we don't send marketing emails)

We never use your information for:

• ❌ Marketing or advertising
• ❌ Selling to third parties
• ❌ Building user profiles
• ❌ Cross-site tracking

5. Data Security Measures

We implement multiple layers of security:

• Encryption: HTTPS encryption for all website communication
• Server Security: Regular security updates and monitoring
• Data Minimization: Collecting only essential information
• Access Control: Limited access to any stored data

6. Cookies and Tracking

We use minimal cookies:

• Essential Cookies: Session management and security
• No Third-Party Cookies: We don't use advertising or analytics cookies
• Browser Control: You can disable cookies in your browser settings

7. Third-Party Services

We maintain a minimal third-party footprint:

• No Analytics: We don't use Google Analytics or similar tracking services
• No Advertising Networks: No ad networks or remarketing tags
• Hosting Only: Standard web hosting services with privacy protections

8. Your Privacy Rights

You have full control over your data:

• Access: Request what information we have about you
• Deletion: Request deletion of your contact information
• Correction: Request corrections to your data
• Objection: Object to any data processing
• Portability: Request your data in portable format

9. Children's Privacy

Our services are designed for professional and educational use:

• Age Limit: Not directed at children under 16
• No Collection: We don't knowingly collect data from children
• Educational Use: Students may use our calculators with parental guidance

10. Policy Updates

We may update this policy to reflect:

• Changes in legal requirements
• Improvements in privacy practices
• New features or services

Significant changes will be noted with updated "Last Updated" dates.

11. Contact Information

For privacy questions or data requests:

• Email: [email protected]
• Response Time: Typically within 48 hours
• Subject Line: Include "[PRIVACY]" in your email subject

We take all privacy concerns seriously and respond promptly to inquiries.