Advertising Disclosure
Last updated: June 9, 2026
OnlineCalc is free to use. To keep it that way, the site is supported by advertising and, in some places, affiliate relationships. We want to be transparent about how that works.
Advertising
We display ads through third-party networks, including Google AdSense. Ads are clearly distinguishable from our content. Advertising revenue helps us build and maintain calculators, keep figures current, and offer the tools for free without requiring an account.
Ads never affect calculations
This is the most important commitment on this page: advertising has no influence on any calculation, eligibility result, ranking, or recommendation. The numbers a calculator returns come from a deterministic rules engine based on official formulas - never from an advertiser. We do not change a result, hide a tool, or reorder anything in exchange for ad revenue.
Affiliate relationships
Some links to third-party services (for example, tax software or professional advisers) may be affiliate links, meaning we could earn a small commission at no extra cost to you if you sign up. Where this applies, it does not change the calculator's output or which options we describe. We aim to only reference services we consider genuinely relevant.
Controlling the ads you see
You can manage personalized advertising through your cookie-consent choice on this site and via Google Ads Settings and aboutads.info/choices. See our Privacy Policy for full details on cookies and data.