Privacy policy
The short version: your calculations stay on your device, and we store only what you deliberately send us.
Last updated August 2026
Your calculations are private
All calculators and converters on this site run entirely in your web browser. The numbers you enter are never transmitted to our servers, never logged, and never stored by us. When you close the tab, they're gone.
What we collect
We collect data in exactly one situation: when you send us a message through the contact form.
- Contact form: your name, email address, and message, stored so we can read and reply to you.
- Standard server logs: like any website, our hosting provider processes technical request data (IP address, browser type) to deliver pages and prevent abuse.
What we don't do
Just as important, here's what never happens on this site:
- No advertising trackers or third-party ad networks.
- No sale or sharing of personal data with data brokers.
- No accounts, so no stored profiles or passwords.
- No recording of the values you type into calculators.
Cookies
This site does not use tracking cookies. Any storage in your browser is limited to what's technically required for the site to function.
Your rights
If you've contacted us and want your message deleted, or want to know what we hold about you, use the contact form and we'll take care of it. Depending on where you live, you may have additional rights under laws such as the GDPR or CCPA — we honor those requests for everyone.
Changes
If this policy changes, the “last updated” date at the top of the page will change with it. Material changes will be described plainly here.