Contact

Email [email protected].

Corrections are the most welcome

If a formula, a constant or a threshold on this site is wrong, that is the most important thing you can tell us. Please include the source you think should be used. Corrections to the math are acted on before anything else.

Other things worth sending

• A calculator you looked for and could not find.
• A tool that gave an answer that looked wrong, with the inputs you used.
• Anything on the site that is unclear, broken, or hard to use with a keyboard or screen reader.

What we cannot do

We cannot give veterinary advice, assess a specific dog, or answer emergency questions. If your dog needs help now, call your vet or a pet poison control line. The numbers are on the medical disclaimer page.