Dog calculators built on veterinary studies
Every number has a source. No sign-up, nothing stored, and each calculator can be embedded on your own site for free.
Dog age calculator
Your dog's age in human years, size-adjusted, plus the epigenetic clock and current life stage.
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Dog lifespan calculator
Breed range adjusted by sex, neuter status and body condition, using published cohort effects.
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Dog calorie and food calculator
Daily calories from the NRC equation and cups per day for your specific food.
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Ideal dog weight calculator
Body condition score to ideal weight, pounds to lose and a safe timeline.
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Puppy growth calculator
Predict adult weight from today's weight and age, with a growth curve by breed size.
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Senior dog age calculator
When your dog becomes a senior by AAHA life stages, with a checklist for each stage.
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See how each calculator works and the studies behind it.