Calculators
Browse every pet calculator, assessment, planner, quiz, and support tool in one searchable library.
Everyday pet care tools
Free pet calculators and care tools for dogs, cats, and small pets.
Calculator For Pets brings together calculators, planners, trackers, scales, questionnaires, and comparison tools for dog, cat, and small pet care. The goal is simple: help pet owners make everyday feeding, wellness, safety, and budgeting decisions with more clarity.
100 pet tools
Dogs, cats, and more
Free to use
Built for real homes
Measure feeding, track changes, and make calmer care decisions without digging through scattered charts or forum posts.
Find the right pet care tool faster
Browse calculators, planners, trackers, assessments, and comparison tools grouped by the kind of pet care question you are trying to solve.
Assessment and Scales
These tools help pet owners notice patterns, score symptoms, and bring clearer information to a veterinary conversation.
Planner
Planning tools make everyday care more consistent, especially when timing, routines, and follow-up tasks matter.
Converter
Conversion tools help you translate pet data into something easier to understand and act on.
Questionnaire
Questionnaires turn observations into a more organized starting point for better pet care decisions.
Identifier
Identifier tools help narrow possibilities, organize observations, and point you toward the right next step.
Triage
Triage tools are designed to support fast judgment, not replace emergency veterinary care.
Generator
Generators take your inputs and turn them into a practical output you can use right away.
Simulation
Simulation tools are useful when a scenario needs to be modeled step by step before action is taken.
Tracker and Log
Tracking builds a record over time so subtle patterns become easier to see and explain.
Quiz
Quizzes are a light way to learn more about pet behavior, fit, and lifestyle needs.
Comparisons
Comparison tools help you weigh tradeoffs side by side before you make a purchase or care decision.
Featured tools
Popular places to start
From calorie planning to toxicity checks, these are some of the pages pet owners reach for most often when they need a fast, practical answer.
Dog Quality of Life Calculator
Use our free HHHHHMM quality of life calculator to assess your dog's comfort and wellbeing. Get a clear score to guide end-of-life care decisions.
Dog Age Calculator & Converter
Convert your dog's age to human years using breed-size-aware formulas. More accurate than the old 'multiply by 7' rule. Fast, free, and science-backed.
Body Condition Score in Dogs
Assess your dog's body condition using the veterinary 1-9 BCS scale. Find out if your dog is underweight, ideal, or overweight in minutes.
Chocolate Toxicity Calculator for Dogs
Enter your dog's weight and the amount of chocolate eaten to find out if it's toxic. Know when to call your vet or go to an emergency clinic.
MER Calculator for Dogs
Find out exactly how many calories your dog needs per day. Enter weight, age, and activity level for a precise MER-based feeding recommendation.
MER Calculator for Cats
Calculate how many calories your cat needs each day. Based on weight, age, and activity level using the veterinary MER formula. Free and accurate.
Canine Pregnancy Calculator and Calendar
Calculate your dog's due date and get a week-by-week pregnancy timeline. Enter the breeding date to plan for whelping and puppy care.
Cat Age Calculator
Convert your cat's age to human years with our accurate cat age calculator. Includes life stage milestones and health tips for kittens, adults, and seniors.
About the website
Built by pet lovers who wanted clearer measurements.
Calculator For Pets was created after repeated frustration with vague feeding advice, missing care timelines, and hard-to-interpret online tools. We wanted a better experience for pet owners who care deeply about health and wellbeing but need practical help fast.
Visit the About Us page to meet the veterinary and nutrition focused team behind the project.
Contribute and contact
Share stories that help other pet owners.
Alongside the tools, we publish thoughtful articles and real-life experiences that make difficult care topics easier to understand in everyday life.
Contribute your story or contact the team if you want to share feedback, ideas, or future calculator requests.
Helpful reads for pet owners
Browse practical articles that add context to common pet care questions and point you toward useful tools when you need a clearer next step.
How to Use a Dog Age Calculator More Accurately
Simple guidance for pet owners who want calmer decisions at home.
What a Dog Quality of Life Score Can Tell You
Practical context for understanding a care question before entering numbers.
Chocolate Toxicity in Dogs and What Pet Owners Should Do First
Everyday pet care advice with clear takeaways and a useful tool nearby.
How Many Calories Does a Cat Need Each Day
Plain-language help for feeding, safety, comfort, planning, and routines.
How Many Calories Does a Dog Need Each Day
A focused guide for owners who want the why behind a common pet care topic.
A Practical Guide to Pet Water Intake
Helpful notes for turning a confusing care question into a clearer next step.