Sources & standards

Every PawMath tool follows a published source. If a result looks wrong, email us with your dog's details and the source page you are checking against. We publish fixes within a day or two.

Dog age calculator

• Wang, T. et al. (2020). "Quantitative Translation of Dog-to-Human Aging by Conserved Remodeling of the DNA Methylome." Cell Systems, 11(2). doi:10.1016/j.cels.2020.06.006
• American Kennel Club. "Dog Years to Human Years Chart." Reference for adult size breakpoints and average lifespan by size.
• American Veterinary Medical Association. Senior dog care guidelines for life stage breakpoints.

Food portion calculator

• National Research Council (2006). Nutrient Requirements of Dogs and Cats. National Academies Press. The reference text for RER and DER formulas. RER = 70 × (weight_kg)^0.75 is from this volume.
• Banfield Pet Hospital (2024). State of Pet Health Report. Source for the US pet obesity prevalence figure (56%).
• World Small Animal Veterinary Association. Body Condition Score charts (1–9 scale).

Corrections

Email hello@adjustingstudio.com with the tool, the inputs you used, the result you got, and the source you are checking against. We post fixes the same week.