Last updated October 2026
What we collect
There are no accounts on this site, and we don't ask for your name or email unless you write to us. The calculators run entirely in your browser; whatever you type into them isn't sent anywhere.
Hosting logs
Like any website, our hosting provider keeps standard request logs (IP address, browser, pages requested) to serve the site and protect it from abuse. We use them only for security and to keep the site running well.
Light and dark mode
If you switch the color theme, your choice is saved in your browser's local storage so the site remembers it. It never leaves your device.
Advertising
We may show ads served by Google AdSense. Google and its partners may use cookies to show ads based on your visits to this and other websites. You can turn off personalized ads in Google Ad Settings, and Google explains its practices in its advertising policies.
Affiliate links
Some links go to Amazon. If you buy something after clicking one, Amazon may use cookies to credit the sale to us. Details are in our affiliate disclosure.
Your choices
You can block or clear cookies in your browser at any time. Everything on this site works without them.
Questions
Email hello@gastanksize.com.