Last updated April 30, 2026
Privacy Policy
AuctionMath provides browser-based auction calculators, including this buyer's premium confirmation tool for checking whether a price can already include a buyer's premium based on the auction bid increment, or calculating the added premium if it does not. The calculator runs in your browser and does not require you to create an account.
Information We Collect
We do not ask you to submit personal information to use the calculator. If you contact us by email, we may receive your email address and any information you choose to include in your message.
Calculator Inputs
The dollar amount, premium percentage, and bid increment you enter are processed locally in your browser to test the included-premium relationship and show the add-on math. We do not intentionally store those calculator inputs on a server.
The historical exchange rate calculators send the selected date, source currency or metal, target currency, and amount to our exchange-rate endpoint so the conversion can be calculated. Our endpoint requests reference rate data from an exchange-rate provider and does not intentionally store those inputs beyond temporary hosting logs.
Advertising and Cookies
We may use Google AdSense or similar advertising services to display ads. Advertising partners may use cookies, web beacons, IP addresses, device identifiers, or similar technologies to serve and measure ads. These technologies may allow third parties, including Google, to place and read cookies on your browser or collect information as a result of ad serving on this site.
You can learn more about how Google uses information from sites and apps that use its services at policies.google.com/technologies/partner-sites.
Analytics
We may use basic analytics or hosting logs to understand site traffic, diagnose technical issues, and improve the tool. These services may collect information such as browser type, device type, referring pages, approximate location, and pages visited.
Your Choices
You can adjust your browser settings to block or delete cookies. You can also use Google's ad settings and industry opt-out tools to manage personalized advertising preferences.
Children's Privacy
This site is not directed to children under 13, and we do not knowingly collect personal information from children under 13.
Changes to This Policy
We may update this Privacy Policy from time to time. Updates will be posted on this page with a new last updated date.
Contact
Questions about this Privacy Policy can be sent to lauren@sidequest29.com.