Free calorie calculators, weight trackers, and nutrition tools designed by a certified veterinary nutritionist. No guesswork. No guilt. Just science-backed numbers for your cat's health.
Every calculator is built on veterinary nutrition formulas. Your data never leaves your browser.
Enter weight, age, activity level, and spay/neuter status. Get a precise daily calorie target based on RER/MER formulas.
Log your cat's weight over time and see trends on an interactive chart. Spot problems before the vet does.
See how many treats your cat can have per day without breaking their calorie budget. No more guilt.
An interactive visual guide to scoring your cat's body condition at home. No scale required.
Generate a personalized feeding schedule based on your cat's calorie needs and your daily routine.
Compare calorie density, protein, and fat across different food types. Make informed choices.
Science-backed nutrition advice from a veterinary nutritionist who has actually been in the trenches.
I put a pedometer on my cat last Tuesday. Not a Fitbit. A tiny accelerometer designed for pets. I wanted to know how much my indoor cat actually moves...
My cat, Luna, was not a chonker. She was a cat who had discovered the infinite buffet. I had left a bowl of dry food out since the day I adopted her, ...
My Cat Stopped Eating During Portland's Smoke SeasonโAnd the Vet Bill Taught Me a Hard Lesson Olivia Brennan On the third day of the wildfire smoke, I...
The Vet Visit That Made Me Rewrite Milo's Diet I sat in the exam room at the veterinary clinic on Hawthorne, holding Milo's carrier on my lap like it ...
The Night I Realized Milo Was Eating Milo's Portions Plus Luna's Leftovers It was 10:30 PM on a Tuesday. I was standing in the kitchen in my pajamas, ...
Bring a weight log. Bring a food diary. Bring the bag of food. Your vet will thank you. Your cat will hate you. Worth it.
Every calculator uses the same RER/MER equations veterinary nutritionists use in clinical practice.
All calculations happen in your browser. We never see, store, or sell your cat's data.
Save weight history, compare trends, and export reports to share with your veterinarian.
No paywalls, no sign-ups, no "premium tiers." Every tool is free because cat health shouldn't cost money.