Dog calculators
From the puppy days to the gray-muzzle years. Plan portions, understand age, and find room for them to grow.
Dog Age Calculator
Compare your dog’s calendar age with human years using a size chart or the Labrador DNA study.
Human to Dog Years Calculator
Find the approximate chronological dog age corresponding to a human-equivalent age in the size chart.
Puppy Weight Calculator
Compare a puppy’s measured weight with the published adult weight range for their breed.
Mixed Breed Puppy Weight Calculator
Compare a mixed-breed puppy with a planning scenario built from the parents’ adult weights.
Dog Size Calculator
Find the adult weight class used by the dog age chart, without guessing gear sizes.
Dog Food Calculator
Turn a starting calorie estimate into dry and wet portions using the values on your food labels.
Dog Calorie Calculator
Estimate resting and daily energy for a healthy dog using weight and a life-stage factor.
Puppy Food Calculator
Estimate starting puppy calories and divide label-based portions between meals.
Dog Pregnancy Calculator
Estimate dog breeding dates, show a planning window, and download a due-date calendar or herd list.
Dog Heat Cycle Calculator
Set a reminder from the last observed heat and your dog’s recorded cycle interval.
Dog Crate Size Calculator
Calculate minimum internal crate length and height from your dog’s actual measurements.
Dog Harness Size Calculator
Match a measured chest girth against one cited harness chart and check the individual fit.
Dog Water Intake Calculator
Compare body weight with a general total-fluid reference that includes moisture from food.