Privacy Policy

Last updated: April 2026

1. Information We Collect

Calculators.im is designed to minimize data collection. Here's what we collect:

  • Calculator inputs: Numbers you enter are processed in your browser or sent to our server for calculation. We do not store your calculation inputs or results.
  • AI analysis requests: If you use the optional AI feature, your calculation results are sent to our AI provider (Anthropic) for analysis. These are not stored after the response is generated.
  • Analytics: We collect anonymous usage statistics (page views, popular calculators) to improve the site. No personal information is tracked.
  • Cookies: We use minimal cookies for site functionality (theme preference, session). No third-party tracking cookies.

2. How We Use Your Information

  • To provide calculation results
  • To generate AI-powered insights (when requested)
  • To improve site performance and user experience
  • To fix bugs and resolve technical issues

3. What We Don't Do

  • We do not sell, rent, or share your personal data with third parties
  • We do not require account creation or login
  • We do not use third-party tracking cookies (Google Analytics, Facebook Pixel, etc.)
  • We do not store your calculation inputs or results after the session ends

4. Third-Party Services

We use Anthropic's Claude API for optional AI analysis features. When you request AI analysis, your calculation results (not personal data) are sent to Anthropic's servers. Anthropic's privacy policy governs their handling of this data. We use Cloudflare for CDN and DDoS protection, which may process connection metadata (IP addresses) as described in Cloudflare's privacy policy.

5. Data Security

All connections to Calculators.im are encrypted via HTTPS/TLS. Most calculations run entirely in your browser and never leave your device. Server-side calculations are processed in memory and not logged or stored.

6. Children's Privacy

Calculators.im is a general-purpose tool site. We do not knowingly collect personal information from children under 13. Since we don't require accounts or collect personal data, this is generally not applicable.

7. Changes to This Policy

We may update this privacy policy from time to time. Changes will be posted on this page with an updated "Last updated" date.

8. Contact

For privacy-related questions, contact us at privacy@calculators.im.