Cat Calculators
Cat calculators
Calculators & Tools
Cat Age Calculator
The Cat Age Calculator converts your cat's age into the human-year equivalent using the AAHA/AAFP feline life stage system. Enter your cat's age in years and months to get the human-year equivalent, current life stage, and stage-specific health guidance. It supports all life stages from kitten through senior and super-senior.
Cat Calorie Calculator
The Cat Calorie Calculator works out your cat's daily energy requirement using the veterinary Resting Energy Requirement (RER) formula and a life-stage multiplier. Enter your cat's weight and select the life stage to get the daily kcal target, wet food portion estimate, and dry food gram equivalent. It covers nine life stages from kitten through lactating queen.
Cat BMI Calculator
The Cat BMI Calculator works out your cat's Feline Body Mass Index (FBMI) using rib cage circumference and lower leg length. Enter the two measurements in cm or inches to get a numeric FBMI score, body condition category, and a WSAVA 9-point body condition score comparison. The calculator supports both metric and imperial inputs and displays a reference table of healthy, overweight, and obese FBMI ranges.
Cat Quality of Life Calculator
The Cat Quality of Life Calculator scores your cat's wellbeing using the HHHHHMM scale developed by Dr. Alice Villalobos. Rate seven criteria, Hurt, Hunger, Hydration, Hygiene, Happiness, Mobility, and More Good Days, on a scale of 1 to 10 each. A total score of 35 or above indicates acceptable quality of life, while scores below 35 suggest a veterinary review is needed.
Cat Chocolate Toxicity Calculator
The Cat Chocolate Toxicity Calculator works out the methylxanthine dose your cat received if they ate chocolate. Enter your cat's weight, the type of chocolate, and the estimated amount consumed to get the combined theobromine and caffeine dose in mg/kg, a risk level classification, and guidance on whether veterinary contact is needed. Emergency contact details are shown automatically for high and severe risk results.
How Big Will My Cat Get Calculator
The How Big Will My Cat Get Calculator predicts your kitten's adult weight using a growth percentage table based on age. The most reliable prediction uses the 16-week (4-month) landmark, at which point kittens reach approximately 50% of their adult weight. Enter your kitten's current age in weeks or months and their current weight to get the predicted adult weight in kg and lbs, the percentage of growth already completed, and matching breed size ranges.
Fish Oil Dosage Calculator for Cats
The Fish Oil For Cats Dosage Calculator works out the correct omega-3 EPA+DHA dose for your cat based on body weight and health condition. Enter your cat's weight in kg or lbs and select the condition level to get the daily EPA+DHA target in mg, the equivalent number of capsules or ml of liquid supplement, and a reference table of common supplement EPA+DHA contents. The key distinction is that all doses are based on EPA+DHA content, not total fish oil weight.
Metronidazole For Cats Dosage Calculator
The Metronidazole For Cats Dosage Calculator works out the correct metronidazole dose for cats based on body weight and clinical indication. Enter your cat's weight in kg or lbs and select the indication to get the dose in mg per administration, the equivalent tablet fraction or suspension volume, and the recommended frequency and duration. Indications covered include Giardia, IBD, acute diarrhoea, hepatic encephalopathy, and anaerobic bacterial infection.
Cat Benadryl Dosage Calculator
The Cat Benadryl Dosage Calculator works out the correct diphenhydramine (Benadryl) dose for cats based on body weight. Enter your cat's weight in kg or lbs to get the dose in mg, the equivalent tablet fraction or liquid volume, and administration guidance. The calculator includes safety warnings for cats with contraindications to antihistamines.
Cephalexin For Cats Dosage Calculator
The Cephalexin For Cats Dosage Calculator works out the correct cephalexin dose based on your cat's body weight and the severity of the infection being treated. Enter the weight in kg or lbs and select mild, moderate, or severe infection to get the dose in mg, the equivalent tablet fraction or suspension volume, and a suggested dosing schedule. The calculator covers 250 mg capsules, 500 mg capsules, and 125 mg/5 ml and 250 mg/5 ml oral suspensions.