Last updated: August 27, 2026
Calculator information
Calculator inputs are processed locally in your browser. We do not require an account, and the current site does not send or store the measurements, rates, costs, or usage values entered into calculators.
Hosting and technical logs
Our hosting provider may process standard technical information needed to deliver and protect the website, such as IP address, browser type, requested pages, timestamps, and security logs.
Advertising and analytics
If advertising or analytics services are added, those providers may use cookies or similar technologies according to their own policies. This policy will be updated before those services are enabled.
External links
Calculator pages link to government agencies and other external sources. Their privacy practices are governed by their own policies.
Changes
We may update this policy as the site changes. The revision date at the top identifies the current version.