Privacy Policy

Information We Collect

When you use our calculators, we log the calculation inputs and results along with your IP address and session identifier. This data helps us improve our tools and understand usage patterns. No account or login is required.

When you submit the contact form, we store your name, email address, and message.

Calculation history saved via the "Save" feature is stored in your browser's local storage and is not transmitted to our servers unless you explicitly save a calculation.

How We Use Your Information

We use calculation data in aggregate to improve our tools. We do not sell, trade, or share your personal information with third parties for marketing purposes.

Cookies & Local Storage

We use session cookies to maintain your browsing session and local storage for saved calculations and theme preferences. We may use analytics cookies (e.g., Google Analytics) to understand how visitors use our site.

Third-party advertising partners and affiliate networks may place cookies on your device to serve relevant ads and track conversions. You can manage cookie preferences through your browser settings.

Third-Party Services

We may use the following types of third-party services:

• Analytics (e.g., Google Analytics) — traffic and usage analysis
• Advertising (e.g., Google AdSense) — display advertising on our site
• Affiliate networks — we may earn commissions when you purchase products through affiliate links on our site

These services may collect information through cookies and similar technologies. Please refer to their respective privacy policies for details.

Data Retention

Calculation logs are retained indefinitely in aggregate form. Contact form submissions are retained until the inquiry is resolved. You may request deletion of your data by contacting us.

Children's Privacy

This site is not directed at children under 13. We do not knowingly collect information from children.

Changes to This Policy

We may update this policy at any time. The "last updated" date at the top reflects the most recent revision.

Contact

If you have questions about this privacy policy, please contact us.