DogAge: Dog Age Calculator

Discover your dog's true age in human years with the most scientifically accurate calculator available. Based on groundbreaking research from UC San Diego School of Medicine, our app uses the latest veterinary science to give you precise age conversions.

WHY CHOOSE DOG AGE CALCULATOR?

Scientific Accuracy Built on peer-reviewed research published in Cell Systems journal by UC San Diego researchers. This isn't the old "multiply by 7" myth - it's real science that accounts for how dogs actually age.

Breed Size Matters Different sized dogs age at different rates. Our calculator adjusts for:

• Small breeds (under 22 lbs / 10 kg)
• Medium breeds (22-55 lbs / 10-25 kg)
• Large breeds (55-100 lbs / 25-45 kg)
• Giant breeds (over 100 lbs / 45 kg)

Easy to Use A simple three-step flow: set your dog's age, pick the breed size, and instantly see the equivalent human age together with the life stage and average lifespan. Beautiful, intuitive interface designed for dog lovers.

Saved Dog Profiles Save each dog as a profile and reopen its result in one tap - perfect for multi-dog households and quick repeat checks.

Age Timeline & Life Stage Guidance Follow how your dog's human age changes from 1 to 25 years, and get stage-by-stage care tips - puppy, adolescent, young adult, midlife, senior and geriatric - in "Today at a glance".

Comprehensive Information

• Detailed explanation of the calculation formula
• Age stage descriptions (puppy, adult, senior, etc.)
• Average lifespan by breed size
• Educational content about dog aging

THE SCIENCE BEHIND THE APP

Traditional dog age calculations are oversimplified. Modern research shows that dogs age rapidly in their early years, then slow down as they mature. Our formula uses natural logarithms to accurately model this non-linear aging process.

The calculation: human_age = 16 × ln(dog_age) + 31

This formula accounts for the epigenetic changes in dogs' DNA as they age, providing unprecedented accuracy in age conversion.

PERFECT FOR:

• Dog owners wanting to understand their pet's life stage • Veterinary professionals seeking accurate age references • Pet adoption agencies helping match dogs with families • Anyone curious about their furry friend's true age

FEATURES:

• Support for all dog ages from puppies to seniors • Breed size-specific calculations • Step-by-step calculator with saved dog profiles and age timeline • Free to use with ads - remove all ads with a single one-time purchase (no subscription) • Available in 13 languages • Core calculator works offline • No account or sign-up required

PRIVACY:

You never need an account, and your saved dog profiles stay on your device. The free version shows ads from Google AdMob and uses Firebase for anonymous usage and crash statistics; on iOS you decide whether to allow ad tracking. See our privacy policy for full details.

ABOUT THE RESEARCH:

Developed based on "Quantitative Translation of Dog-to-Human Aging" published in Cell Systems by researchers at UC San Diego School of Medicine. The study analyzed DNA methylation patterns in over 100 dogs to create the most accurate aging model available.

Whether you're celebrating your dog's birthday, considering pet insurance, or just curious about your companion's age, Dog Age Calculator provides the answer backed by science.

Download now and discover your dog's true age in human years!