Cat Weight Calculator

Find the ideal weight for your cat's breed and age.

Cat Weight Calculator

Welcome to’ cat calorie calculator! With this calculator tool, you’ll be able to have a great starting point for understanding where your kitty’s weight is in relation to his or her ideal weight, how many calories your cat needs per day, and how much of your furry feline’s delicious food to feed!

But before you use the tool, make sure to read our introduction to the tool first, including why it’s important to know if your kitty is at an ideal weight, the importance of feeding the right amounts of food, the dangers of feline obesity, and how the tool works to help get you on the right track.

STEP 1 of 5
Cat's name
Please enter cat's name
Cat's weight (lb)
Please enter cat's weight (lb)
Cat's age
Please enter cat's age
Spay/neuter status
Please enter spay/neuter status

Carefully observe your cat’s silhouette and body composition, then compare it to the illustrations and descriptions in the chart below. Select the number that most closely describes your cat’s body condition.

Cat Weight Calculator
Swipe to see other conditions
Cat's Body Condition 1
Ribs, backbone, pelvic bones stick out. Loss of muscle mass present. Severe tummy tuck and dramatic waistline.
Cat's Body Condition 2
Ribs, pelvis, backbone easily palpated and somewhat visible. Severe waistline and tummy tuck.
Cat's Body Condition 3
Ribs, pelvis and backbone palpable with a thin layer of fat covering. Waistline and tummy tuck obvious but not severe with more gradual curves.
Cat's Body Condition 4
Ribs covered with heavy fat layer requiring finger pressure to feel. Difficult to feel backbone or pelvis. Waistline not apparent. Tummy tuck still slightly visible.
Cat's Body Condition 5
Ribs and backbone not palpable under thick fat layer. Abdominal distention projects downwardand outward . Fat deposits on legs, face and over tail head covering pelvis.

How’s the Weight, Doc?

This is a question many pet parents, both kitty and pup parents alike, ask during their visits with their vet, but it’s probably a discussion that could still be had more often.

According to the latest 2018 results from the Association for Pet Obesity Prevention (APOP), which surveys pet parents and veterinary clinics about every two years, about 70% of parents would like to have cat weight loss and diet discussions with their vet, though only about 60% reported having these chats during visits.

This implies that more pet parents want to have these discussions and they need to be prompted more. Some veterinarians are afraid of inadvertently offending a pet parent by telling them that their cat is overweight. But on the flip side, a pet parent may think their cat’s weight is not an issue if their vet doesn’t say anything about it.

A calculator tool can be helpful to bridge this gap, as it can create a great starting point for those discussions. Instead of assuming your kitty’s weight is probably fine, or asking a generic question like “How’s the weight, doc?” The question can instead be “The online calculator I used said Kitty was about 2lb overweight. What can we do about that?”

- Dr. Chris Vanderhoof, DVM