Privacy
Privacy Policy
Last updated: September 22, 2026
Our Calculators Don't Collect Your Inputs
Every calculator on PuppyCalc — dog age, pregnancy due date, puppy weight, dog weight, puppy development — runs entirely in your web browser using JavaScript. The dates, weights and ages you enter are used only to compute a result on your screen; they are never sent to our servers, stored in a database, or shared with anyone. We don't require an account, and we don't ask for your name, email or any personal information to use a calculator.
Advertising & Cookies
PuppyCalc is supported by advertising, including Google AdSense. Google and its advertising partners may use cookies or similar technologies to serve ads based on your visits to this and other websites, and to measure how ads perform. You can learn more about how Google uses data in this context, and manage your ad personalization settings, at myadcenter.google.com. You can also opt out of personalized advertising broadly through the Digital Advertising Alliance opt-out page.
Analytics
We may use standard web analytics tools to understand aggregate traffic patterns (for example, which pages are visited and roughly how many people visit). This data is anonymized and aggregated — it is not used to identify individual visitors, and it's separate from anything you type into a calculator.
Third-Party Links
Some pages link to external sources (such as AKC, AVMA, VCA or AAHA) for the guidance our figures are based on. We aren't responsible for the privacy practices of those external sites — please review their own policies if you visit them.
Children's Privacy
PuppyCalc is a general-audience site and does not knowingly collect personal information from children.
Changes to This Policy
We may update this policy from time to time as the site changes (for example, if we add new tools or advertising partners). Continued use of the site after an update means you accept the revised policy.
Contact
Questions about this policy? Reach us at hello@puppycalc.com or via our Contact page.