Privacy policy
Effective September 22, 2026.
Tools
The calculators run in your browser. We do not receive or store the values you enter.
Analytics
We use Vercel Web Analytics for aggregate visits, referrers, and broad device information. It does not use advertising cookies or identify visitors to us.
If you email us, the email and mailbox providers process the information you send so we can respond. Do not send confidential or sensitive information.