Licenses
Licenses and sources
The published sources and open-source parts this site uses, and their licenses.
Sources used on the site today
| What | From | Used for |
|---|---|---|
| Adult dog calorie ranges | WSAVA Global Nutrition Committee chart (updated July 2020; references the 2006 NRC), read November 13, 2026 | The cross-check column in the worked example. The chart is © WSAVA; we repeat five of its numbers as facts with a link, and do not copy the chart |
| RER formula | 70 × kg^0.75, as used in the AAHA 2021 Nutrition and Weight Management Guidelines | The resting-energy step of the worked example |
| DejaVu Sans | The DejaVu fonts project (dejavu-fonts.github.io) | Lettering drawn into the share image and app icons (not served as a font). Bitstream Vera Fonts License; DejaVu changes in the public domain |
Formulas and published numbers are facts and are used as such; the scale and table on this site are computed by our own code. The DejaVu license allows the fonts to be used, copied and distributed freely, with its copyright and permission notice kept; the full text is in the DejaVu license.
Our own work
The pages, the calorie scale, the calculator code and the PetYardstick mark are our own work. The pages use your device’s own system fonts and no third-party code. Scripts from outside this site: our self-hosted Umami counter, and Google Analytics only if you accept it (see privacy).