Privacy policy

Updated October 14, 2026.

Information on this site

This version has no accounts, newsletter forms, advertising pixels or analytics scripts. Calculator inputs are processed in your browser and are not intentionally stored or transmitted by the site code. Hosting providers may process request logs, IP addresses and security information needed to serve the site.

External websites

Amazon and other external sites have their own privacy policies and may use cookies or similar technologies when you visit them. Configured affiliate links may carry an Associates tracking identifier so Amazon can attribute a qualifying purchase.

Changes

This policy must be updated before adding analytics, forms or other data collection. This publication does not currently provide a contact form; do not submit personal data through calculator fields.