The short version
We don't collect personal data. There are no accounts, no sign-up forms and no email lists, and the calculators run entirely in your browser. Nothing you type into a calculator is sent to us.
What your browser stores
If you switch between US and metric units, your browser remembers the choice (local storage) so the next page opens the same way. It stays on your device and you can clear it in your browser settings.
Analytics
We use a cookie-free analytics service to count page views, which pages are popular and roughly where visits come from (country, referring site, device type). It doesn't set cookies or build a profile of you.
Ads and affiliate links
Some links go to retailers and suppliers (such as Home Depot, Amazon and Aggregate Markets) and are affiliate links: if you buy, we may earn a commission. When you click one, that site and its affiliate network may set cookies to record the referral, under their own privacy policies.
We may show ads from third-party ad networks. Those networks can use cookies or similar technology to show and measure ads. When ads go live we'll add a consent banner where the law requires one, and you'll be able to change your choices there.
Contact
Questions about this policy: email [email protected].