🐱 Cat Health Calculators
Precision tools for indoor cat owners. Nutrition, health, and wellness — calculated.
Essential Cat Health Tools
⚖️ Body Condition Score & Weight Management
#1 for Cat Owners60% of indoor cats are overweight. Is yours one of them? Take a 2-minute visual assessment and get a science-based weight plan — without starving your cat.
BCS 1-9 Scale · AAHA Guidelines · Safe Calorie Targets
All Cat Tools
Age Calculator
P0How old is your cat in human years? (AAHA/AAFP)
Vaccination Schedule
P0FVRCP, rabies, and more scheduled by age and region.
Gestation Calculator
P0Predict kitten arrival and key veterinary milestones.
BARF Calculator
P1Cat raw feeding ratios: no vegetables!
Insurance Estimator
P1Compare cat insurance plans.
About These Cat Health Calculators
Built on AAHA/AAFP Feline Life Stage Guidelines and WSAVA vaccination standards. Every formula is cited and transparent.
▶How old is my cat in human years?
Cats age differently from dogs and humans. A 1-year-old cat is roughly 15 human years. A 5-year-old cat is about 36. Our calculator uses the AAHA/AAFP feline life stage guidelines. Open →
▶Is my cat overweight? How to use the BCS scale?
The Body Condition Score (BCS) is a 1–9 scale developed by veterinarians. You can assess your cat at home by feeling their ribs and looking at their waist from above. 60% of indoor cats score above 5 (ideal). Our BCS tool guides you through the assessment and calculates a safe weight target. Open →
▶How much water should my cat drink daily?
Cats need approximately 50–60 ml of water per kg of body weight daily. Cats on dry food diets need more supplemental water. Our hydration calculator accounts for both dry and wet food intake. Open →
▶What vaccines does my indoor cat need?
Core vaccines for all cats include FVRCP (feline viral rhinotracheitis, calicivirus, panleukopenia) and rabies. Even indoor cats need these — the FVRCP series starts at 6–8 weeks with boosters every 3 years. Open →
▶How long are cats pregnant?
Cats are pregnant for approximately 65 days (range 61–72 days). Our gestation calculator provides the expected due date range and key veterinary milestones during pregnancy. Open →