How we make money
We earn revenue from display advertising served by Google AdSense. Google chooses which ads to show, based on the page content and, if you allow it, on your interests. We're paid when ads are shown or clicked. We don't currently use affiliate links, sponsored rankings or paid placements.
What advertising never affects
- Results. Calculators use the same formulas for everyone, and no advertiser can change them.
- Content. Our guides are written independently. Advertisers don't review, approve or pay for them.
- Your data. We never pass your calculator inputs to advertisers. They stay in your browser.
How to recognise ads
Ads are served in clearly separated spaces and are labelled by Google as advertisements. An ad appearing next to a calculator isn't a recommendation. Always compare products yourself, and read the provider's terms.
Your choices
You can turn off personalised ads at Google Ads Settings, and visitors in the EEA, UK and Switzerland are asked for consent first. Our privacy policy explains the cookies involved and your rights.
Questions? Contact us.