Evidence-Based Calculators for Your Pet’s Entire Life
Say goodbye to arbitrary 7-year rules and generic tables. PetHub models canine and feline biology using peer-reviewed epigenetic clocks, actuarial life tables, and clinical metabolic standards.
The Canine Lifetime Decision Chain
Growth & Developmental Foundation
Monitor growth completion rate across 5 size tiers to prevent rapid growth orthopedic conditions (OCD/hip dysplasia).
Prime Maintenance & Energy Balance
Calculate true biological age against UC Davis DNA markers, calibrate housing enclosure sizes, and set basal calorie intake.
Senior Wellness & Longevity Care
Detect senior transition milestones, adjust energy density for metabolic slowdown, and adapt clinical checkup frequency.
All Evidence-Based Pet Calculators
Dog Age Calculator
Dual-model epigenetic methylation clock (UC Davis) and size-specific actuarial tables.
Puppy Weight Predictor
Waltham Institute nonlinear growth curves across 5 canine size categories.
Dog Pregnancy Timeline
63-day gestation calendar with ultrasound milestones, whelping cues, and puppy development.
Dog Crate Size Calculator
APDT + UK Animal Welfare ergonomic enclosure formula with breed standards and puppy divider tips.
Dog Food & Calorie Calculator
WSAVA & NRC exponential metabolic equations (70 × BW^0.75) across 8 canine life factors.
Raw Dog Food Calculator (BARF)
Dr. Ian Billinghurst BARF model 70/10/10/10 with NRC calcium-to-phosphorus safety ratio.
Cat Age Calculator
AAHA & AAFP feline life stage guidelines with human equivalence and senior screening milestones.
Cat Food & Calorie Calculator
AAHA/AAFP & NRC feline resting metabolic rate (70 × BW^0.67) with wet and dry portion split.
No Marketing Gimmicks. 100% Transparent Science.
Every calculator cites its primary peer-reviewed veterinary literature with direct DOI links. We publish the algorithmic limitations and domain boundaries of our formulas right alongside the results.