Guides
Straight answers to common dog and cat questions. Each guide shows where the numbers come from and links to a calculator so you can use your own pet’s details. For shorter answers to everyday questions, see the MyPetMath blog.
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How Much Should I Feed My Dog? (Charts by Weight and Age)
How much to feed your dog in calories, cups and grams, with a feeding chart by weight, puppy and senior guidance, and the vet formula behind it.
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Dog Pregnancy Week by Week: Timeline and Checklist
What happens in each week of a dog’s 9-week pregnancy, when to test, how to feed her, how to spot labor, and the warning signs that mean call your vet.
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Dog Years to Human Years: Why “Times 7” Is Wrong
The 7-to-1 rule gets dog age wrong. See a dog years to human years chart by size, the 2020 DNA-based formula, and what age means for your dog’s care.
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How Big Will My Puppy Get? 5 Ways to Estimate
Estimate your puppy’s adult weight from age and current weight, parents, breed and growth charts, and see which popular rules of thumb actually hold up.
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How Much Wet Food Should I Feed My Cat? (Wet vs Dry)
How many cans of wet food your cat needs a day, how to split wet and dry food, and a simple chart by weight, all using the vet calorie formula.
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What Size Crate Does My Dog Need? (Chart by Size and Breed)
Measure your dog in two minutes and find the right crate size. Includes a crate size chart by measurement, weight and breed, plus puppy divider tips.