Privacy policy
Short version: what you type into the calculators stays in your browser.
Calculator inputs
Every calculation on this site runs in your browser using JavaScript. The miles, gallons, costs, and rates you enter are never sent to a server, never stored, and never logged. If you close the tab, they are gone.
What is collected automatically
Like most websites, the hosting provider records standard request data — IP address, browser type, referring page, and the page requested — for security and abuse prevention. This is not linked to anything you type into a calculator.
If analytics are used on this site, they are used to understand which pages are useful, in aggregate. No calculator input is ever included in analytics.
Cookies
The calculators do not set cookies. If third-party services are added to a page in future, this policy will be updated before they are used.
Third-party links
Some pages link to outside services. Once you follow a link, that site's own privacy policy applies. See the affiliate disclosure for which links may earn commission.
Your data and requests
Because calculator inputs are never transmitted, there is no stored personal data to access, correct, or delete. If you have a question about this policy, use the contact route on the about page.
Last updated: November 2026.