Legal
Privacy Policy
Plain-English privacy. What we collect (very little), what we don't, and your rights.
Last updated: April 23, 2026
Short version
- The calculator runs in your browser. Values you enter never leave your device.
- We do not sell personal data. Ever.
- We do not show ads or use ad tracking cookies.
- Basic hosting logs (IP, user agent) exist for security and performance.
- Analytics, if enabled, use privacy-respecting tools that do not build cross-site profiles.
What we collect
In your browser (not sent to us)
The converter calculates results entirely in your browser. The numbers you type, units you choose, and power-factor values stay on your device. They are not uploaded, logged, or stored.
Server logs
Our hosting provider automatically records standard request metadata for security, abuse prevention, and performance monitoring. Typical fields:
- IP address
- Browser user agent
- Timestamp of request
- URL path requested
- Referrer (if any)
These logs are retained for a short period (typically 30 days) and are not joined to any identity.
Analytics
If analytics are enabled, we use a privacy-respecting provider that does not set cross-site tracking cookies or build ad profiles. Data collected is aggregate (page views, countries at the country level, referrer domain). We do not record individual sessions or mouse movements.
Contact messages
If you email us or use the contact form, we receive your message, name (if provided), and email address. We use this only to respond to you and to improve the Site.
What we do not collect
- Account information — we have no user accounts.
- Payment information — the Site is free.
- Precise location data — we do not use geolocation APIs.
- Social profiles — we do not link to third-party social accounts.
- Third-party advertising cookies.
Cookies and local storage
The Site may use a small amount of local storage for remembering preferences (such as dark mode). These are first-party only, stay on your device, and are not tracking cookies.
Third-party services
We rely on the following categories of service providers. Each handles only what is necessary for their function.
- Hosting and CDN — serves the Site and maintains request logs.
- DNS — routes requests to the hosting provider.
- Email — delivers messages you send us via the contact form.
We do not pass user data to advertisers, data brokers, or social networks.
Your rights
Depending on where you live, you may have the right to:
- Request a copy of personal data we hold about you.
- Ask us to correct or delete your data.
- Object to certain processing.
- Withdraw consent at any time.
Since we collect almost nothing linked to identity, most of these requests will confirm we have no personal data to share or correct.
Children
The Site is intended for a general audience. We do not knowingly collect information from children under 13. If you believe a child has submitted information to us, contact us and we will delete it.
Changes to this policy
We may update this policy as the Site evolves or laws change. Material changes will be reflected by updating the “Last updated” date. Continued use after changes constitutes acceptance.
Contact
Questions about privacy? Reach us via the Contact page.