Guides
Practical articles for dog and cat owners, with sources you can check.
- How Many Gallons Is My Fish Tank? Common Tank Sizes Chart
Work out how many gallons or litres your fish tank holds: length × width × height ÷ 231. Chart of common tank sizes, other shapes and real water volume.
- What Size Crate for a Labrador, Golden Retriever or German Shepherd?
Crate sizes for Labradors, Golden Retrievers and German Shepherds: 36–48 inches for most adults on PetSmart's chart, but measure. AKC sizes and puppy tips.
- What Size Crate for a 50 lb Dog? (20, 40, 60 lb Too)
What size crate for a 50 lb dog: usually 36–42 inches by weight, but measure to be sure. Crate sizes for 20, 40 and 60 lb dogs and how to measure your dog.
- How Much Weight Should a Puppy Gain Per Week?
How much weight a puppy should gain each week depends on its adult size and age. How to track it on a WALTHAM growth chart and spot warning signs.
- How Big Will My Puppy Get? Adult Size by Weight and Age
How to estimate your puppy's adult weight from its weight now, age and size group, using WALTHAM growth charts, breed standards and the puppy weight calculator.
- How Much Should a Puppy Eat? Feeding Chart From 8 Weeks to 1 Year
How much to feed a puppy by weight and expected adult size, using the NRC growth formula, with meals per day from 8 weeks to 1 year and when to switch.
- How Much Wet Food Should I Feed My Cat a Day?
Work out how much wet food your cat needs a day from its weight and the kcal on the can, with a calorie chart, grams per day and how to mix wet and dry food.
- How Many Cups of Dog Food Per Day? Chart by Weight
How many cups of dog food a day by weight, worked out from calories (70 × kg^0.75 × 1.6) and the kcal per cup on your bag, with a chart from 5 to 100 lb.
- Is 1 Dog Year Really 7 Human Years? What the Science Says
The 7-year rule is a myth. Vets count a dog's first year as about 15 human years, then size decides the pace. Here is how dog years are really calculated.
- How Old Is My Cat in Human Years? Full Age Chart
Convert cat years to human years with the AAHA chart: 15 at one, 24 at two, then 4 a year. Full table from 6 months to 21 years, plus life stages.









