Section 01
Calculator inputs
Numbers and dates entered into the calculators are processed in your browser. This version does not send those inputs to a KE Calculator server or store them in a KE Calculator database.
If you copy a share URL, the numbers needed to restore that example are in the link you copy. History and favorites, if you use them, stay in this browser’s local storage and can be cleared on the calculator page.
Section 02
Hosting and request logs
The host that serves the website may record routine request data needed to deliver the page and keep it available: IP address, browser type, requested URL, referrer, and timestamps. That is hosting and security logging, not a calculation history.
Section 03
Advertising and analytics
This site does not currently display advertising or set advertising cookies.
The public site loads Google Analytics 4 (measurement ID G-ZGE6V24TC3) to count page views and anonymous product events such as opening a calculator or copying a result. Google may record the page URL, approximate location, device and browser details, and a client identifier stored in cookies or local storage. Calculator inputs and results are not sent to Google Analytics.
Google’s processing is described in Google’s privacy policy. You can limit analytics with browser controls, Google’s opt-out tools, or by blocking third-party scripts.
Section 04
Updates
This page describes the current public site and was last reviewed on August 31, 2026. If data handling changes, the new practice will be described here.