Keeping track of your pet's health and milestones is much easier with the right numbers. This collection includes the Dog Age Calculator for understanding your pup's life stage, the Dog Pregnancy Calculator for tracking canine gestation, the Rabbit Gestation Calculator and Llama Gestation Calculator for livestock owners, and the Dog BMI Calculator to help assess your dog's body condition at a glance.
Check the Popular list to see which tools other pet owners rely on most, or browse the Trending tab for newer additions. Every calculator is free, needs no sign-up, and works on any phone, tablet, or computer — always within reach when you need a quick answer.
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Dog Age in Human Years CalculatorConvert your dog's age into human years using the science-based logarithmic formula (16·ln(age)+31), with a linear puppy approximation under 1 year.
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Boer Goat Gestation CalculatorCalculate your Boer goat doe kidding due date from the breeding date using a 150-day gestation, with an earliest/latest birthing window.
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Nigerian Dwarf Goat Gestation CalculatorEstimate your Nigerian Dwarf goat doe kidding date. Enter the breeding date and gestation length to get the due date plus an early/late window.
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Goat Due Date CalculatorEstimate your goat kidding date from the breeding date and gestation length. Free goat due date calculator with adjustable 140-160 day gestation.
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Aquarium Stocking CalculatorEstimate how many fish your aquarium can safely hold. Enter tank dimensions and fish size to get volume in gallons and a max fish count.
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Dog Temperature & Fever CalculatorCheck if your dog has a fever. Enter your dog's rectal temperature in °F or °C to see if it's normal (101–102.5°F) or elevated.
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Dog Respiratory Rate CalculatorCalculate your dog's resting respiratory rate in breaths per minute. Enter breaths counted over a timed period and compare to the normal 10–30 bpm range.
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Pet Monthly Cost CalculatorEstimate the true monthly cost of owning a dog or cat. Add food, supplies, annual vet bills, insurance and misc to get monthly and yearly totals.
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Dog Food Bag Duration CalculatorFind out how long a bag of dog food will last. Enter bag weight, cups fed per day, and grams per cup to get days, weeks, and months of supply.
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Dog Age in Dog Years by Breed Size CalculatorConvert your dog's age to human years by breed size. Small, medium, and large dogs age differently — get a more accurate dog-years estimate instantly.
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Dog Flea & Tick Medication Weight-Band CalculatorFind the correct flea & tick chew or pill size for your dog by weight band (lb or kg). Quick dose-band lookup — always verify with your vet.
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Cat Calories per Can to Cans per Day CalculatorCalculate how many cans of wet food your cat needs per day. Enter daily calorie needs and kcal per can to get cans per day and per week.
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Dog Calories per Cup to Cups per Day CalculatorConvert your dog's daily calorie needs (MER in kcal) to cups of food per day using the kcal-per-cup density on the bag. Free, instant feeding portion tool.
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Cat Life Expectancy CalculatorEstimate your cat's life expectancy and remaining years based on indoor/outdoor living, weight, neuter status, and vet care quality.
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Cat Ideal Weight CalculatorEstimate your cat's ideal, healthy target weight from its current weight and Body Condition Score (BCS). Each BCS point above 5 ≈ 10% overweight.
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Puppy Milk Replacer Feeding CalculatorCalculate how much milk replacer to feed an orphaned puppy per feeding and per day from weight, caloric need, formula energy, and feedings.
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CBD Oil Dosage Calculator for DogsCalculate the CBD oil dose for your dog by weight. Get mg of CBD and number of drops for low, standard or strong dosing. Vet consult advised.
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Dog Food Cost CalculatorEstimate your dog's daily, monthly, and yearly food cost from the daily portion, bag size, and bag price. See how long one bag lasts.
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Kitten Milk Replacer (KMR) Feeding CalculatorCalculate how much kitten milk replacer (KMR) to feed per feeding and per day based on your kitten's weight in grams and number of feedings.
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Dog Pregnancy Due Date CalculatorEstimate your dog's whelping (due) date from the breeding date. Canine gestation averages 63 days, with a normal range of 58–68 days.
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Puppy Housetraining Hours CalculatorEstimate how long your puppy can hold its bladder based on age. Get max hold time in hours, minutes, and daily potty breaks needed.
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Clavamox for Dogs Dosage CalculatorEstimate Clavamox (amoxicillin/clavulanate) dosage for dogs by weight. Calculates mg per dose every 12 hours using the standard 12.5 mg/kg rate.
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Dog Treat Calorie Limit CalculatorFind how many treat calories your dog can have per day using the vet 10% rule. Enter weight and activity to get a safe daily treat calorie limit.
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Cat Insulin Dose CalculatorEstimate a starting insulin dose for a diabetic cat from body weight and U/kg. Shows the 0.25–0.5 U/kg range. Educational only—confirm with your vet.
Frequently asked questions
What pet care questions can these calculators answer?
The collection covers gestation periods for dogs, rabbits, sheep, swine, and llamas; canine body condition via Dog BMI; life-stage conversion with the Dog Age Calculator; and basic antibiotic dosing guidance for cephalexin in dogs. It is particularly well-rounded for dog owners and for those managing livestock reproduction.
How accurate are the pet care results?
Tools are based on published average gestation lengths and standard veterinary reference formulas. Results are general estimates — individual animals vary considerably. These calculators are NOT veterinary advice; always consult a qualified veterinarian before making health, reproductive, or medication decisions for your pet.
Is there a cost to use these tools?
No. Every calculator is free with no account required. Open any tool on any device and start entering your pet's details immediately — no barriers, no subscriptions.
Do you store my pet's information?
No. Every calculation happens entirely in your browser. No data about your pet — age, weight, breed, or due date — is transmitted to or stored by our servers. Your animal's details stay on your device.
Which pet care calculators are most popular?
The category list is sorted by actual usage, so the tools most pet owners reach for appear at the top. The Trending and Recently Added tabs let you discover newer tools that are gaining popularity among the pet-owner community.
