Age & Time tools
Birthdays, milestones & life stages
Time flies when you're raising a pet. Our age and time tools help you convert pet years to human years, count down to birthdays and gotcha days, and follow month-by-month milestone timelines for puppies and kittens. Perfect for new pet parents who want to celebrate every stage.
6 free tools · no sign-up
New Puppy Setup Checklist
Everything you need before your puppy comes home, in one checklist.
Checklists & Planners3 minNew Kitten Setup Checklist
Everything you need before your kitten comes home, in one checklist.
Checklists & Planners2 minPet Travel Packing Checklist
Never forget your pet's essentials on a trip again.
Checklists & Planners3 minMoving with a Pet Checklist
A step-by-step checklist for moving house with your pet.
Checklists & Planners3 minHome Pet-Proofing Checklist
Make every room pet-safe with this room-by-room checklist.
Checklists & Planners3 minDog Walking Plan Generator
Generate a weekly walking plan tailored to your dog's energy.
Checklists & PlannersExplore other categories
Frequently asked questions
CalcPet offers 5 free age & time tools: Dog Age Calculator, Cat Age Calculator, Pet Birthday Countdown, Puppy Milestone Timeline, Kitten Milestone Timeline. All of them are free and need no sign-up.
No. Every tool on this page works instantly in your browser — nothing to install and no account required.
No. CalcPet tools are estimates for fun and planning only. They are not veterinary advice — always consult your own veterinarian for health or nutrition decisions.