A short, plain-English explanation of what this site does and doesn't do with your information.
Every calculator on this site runs entirely in your browser — the numbers you type into a calculator are never sent to a server, logged, or stored anywhere outside your own device. This site shows ads through Google AdSense, which uses cookies to serve and measure them; details are below.
We don't collect names, emails, or account information, because there are no accounts, and no forms on this site submit data anywhere. We store one local preference ourselves:
Google, as our advertising partner, collects additional information as described in the sections below.
This site uses Google AdSense to show ads. Google and its partners use cookies to serve ads based on your visits to this and other websites, and to measure ad performance. Google may use this data for personalized advertising, subject to your settings at Google Ad Settings.
You can opt out of personalized advertising by visiting aboutads.info/choices, or by adjusting your device or browser settings to block third-party cookies.
Separately, your theme preference is stored using your browser's localStorage, which is different from a cookie — it isn't transmitted to any server and can be cleared any time from your browser's settings.
This site uses two third-party services:
fonts.googleapis.com, which may see your IP address as part of that request.This site is a general-purpose calculator tool not directed at children, and we do not knowingly collect information from children. Ads shown on this site are not configured to target children.
If this policy ever changes — for example, if a future feature needed to store more than a theme preference — this page will be updated and the date at the top will reflect the change.
Questions about this policy can be directed to whoever provided you with this tool.