How we make money
Last updated
Our calculators and guides are free. This is how the site pays for itself.
Advertising
We plan to show ads from Google AdSense on some pages. Advertisers don't choose what we write, and ads never go inside a calculator or next to its results.
Affiliate links
In the future, some links to tools or materials may be affiliate links. If you buy through one, we may earn a commission at no extra cost to you. We will label those links on the page. A commission never changes the prices or quantities we show.
What we don't do
- We don't sell placements in our price tables or calculators.
- We don't sell your personal information.