Instant, personalized answers for every dog owner question — feeding, sizing, scheduling, health, and costs. All free, all in your browser.
Every calculator on this page uses the same formulas and guidelines that veterinarians, veterinary nutritionists, and certified dog trainers use in practice. The puppy food and dog food calculators use the Resting Energy Requirement (RER) formula — the veterinary nutrition standard for calculating caloric needs by body weight. The vaccine schedule follows AAHA (American Animal Hospital Association) guidelines. The exercise calculator applies the 5-minutes-per-month-of-age rule used by vets and orthopaedic specialists to protect developing growth plates. The dog age calculator uses DNA methylation research published in Cell Systems — significantly more accurate than the outdated multiply-by-7 rule.
The calculators are personalised to your specific dog. Entering your dog's exact weight, age, breed size, and activity level produces a result calibrated to their individual needs rather than a generic breed average. The puppy food calculator accounts for the caloric density of your specific food — the single most important variable in accurate portion calculation. The crate size calculators produce dimensions based on your dog's actual measurements. The vaccine and deworming schedule calculators generate exact calendar dates from your puppy's birthdate rather than vague week ranges.
All 23 calculators run entirely in your browser. No data is stored, no account is required, and results are instant. Bookmark this page as your go-to reference for any dog ownership question that requires a specific number rather than general guidance.
The most value comes from using the calculators as a coordinated system. New puppy owners in the first 16 weeks get the most benefit from running four together: the Puppy Food Calculator for daily portions, the Feeding Schedule Calculator for meal times, the Potty Schedule Calculator to coordinate outdoor trips with meals, and the Crate Training Schedule for the complete daily structure. These four together create a coherent daily routine that accelerates potty training, prevents hypoglycaemia in young puppies, and establishes the crate as a positive resting space simultaneously.
For health planning, combine the Vaccine Schedule Calculator and the Deworming Schedule Calculator using the same birthdate to generate a coordinated first-year health calendar. Print both and bring them to your first vet appointment as a starting point for discussion. For equipment decisions, run the Adult Weight Calculator first — the projected adult weight determines whether your puppy needs large breed puppy food, which crate size to buy, and how long exercise must be limited to protect growth plates. Run the adult weight prediction at 8 weeks, 12 weeks, and 4 months as accuracy improves with each data point.
For ongoing adult dog care, the Dog Food Calculator should be rerun any time your dog's weight, activity level, or spay/neuter status changes. The Water Intake Calculator is particularly useful when switching between wet and dry food, when activity levels change seasonally, or if your vet has raised any kidney health concerns. The cost calculators — First Year Cost, Monthly Cost, and Food Cost — are best used together to build a complete budget picture before getting a dog and to track against actuals in the first few months of ownership.
Everything you need for the puppy stage — feeding, growth, schedules, and health milestones.
Daily food amounts and meal portions by age, weight, and breed size using the RER veterinary formula.
Use Free →Generate a custom daily meal schedule by age and your wake-up time, with potty break windows.
Use Free →Track growth week by week and see what percentage of adult size your puppy has reached.
Use Free →Predict how big your puppy will get using the age-weight ratio method. Most accurate at 14–20 weeks.
Use Free →Find the right crate dimensions for your puppy with divider recommendations so one crate grows with them.
Use Free →Safe daily exercise limits by age using the 5-minute rule — protect growing joints from damage.
Use Free →How many hours your puppy should sleep per day by age — and what healthy sleep patterns look like.
Use Free →Generate a custom hourly potty break schedule based on your puppy's age and your daily routine.
Use Free →Complete vaccination timeline with exact dates — enter your puppy's birthdate for a personalized schedule.
Use Free →Itemized breakdown of every first-year puppy expense by breed size and budget level.
Use Free →Convert your puppy's age to human years using the modern DNA methylation scientific formula.
Use Free →Complete puppy deworming timeline with exact dates from birthdate following CDC guidelines.
Use Free →Estimate ongoing monthly dog ownership costs by breed size — food, vet fund, grooming, and prevention.
Use Free →Tools for adult dog owners covering nutrition, sizing, health, and costs.
Convert your dog's age to human years with breed size adjustment — small dogs age slower than giant breeds.
Use Free →Daily calories and cup amounts for adult dogs by weight and activity level using the RER formula.
Use Free →Find the correct crate dimensions for your adult dog by entering height and length measurements.
Use Free →Daily water requirements by weight, activity level, and diet type. Includes dehydration warning signs.
Use Free →Build a custom daily crate schedule by puppy age and your work situation — home, part-time, or full-time.
Use Free →Find the right harness size by chest girth measurement with sizing chart for all harness types.
Use Free →Right travel carrier dimensions for airline in-cabin travel, car trips, and backpack carriers.
Use Free →Assess your dog's tick exposure risk by US region and season with prevention recommendations.
Use Free →Calculate exact monthly and annual dog food costs by entering price and daily portion size.
Use Free →Annual professional grooming cost estimate by dog size and coat type with at-home savings tips.
Use Free →Every calculator uses the same formulas veterinarians and certified trainers use — personalized to your dog's specific age, weight, and breed size. No signup, no ads, no data collected.
RER formula, AAHA guidelines, DNA methylation research
No loading, no account, runs entirely in your browser
No paywall, no subscription, no hidden costs
No data stored or shared — your inputs stay on your device