Free Age Calculators
Calculate your exact age, convert pet ages to human years, find your Korean age, biological age, and more. Instant results, no signup required. All calculations happen in your browser for maximum privacy.
Featured Age Calculators
Age Calculator
Calculate your exact age in years, months, days, hours, minutes, and seconds from your birthdate.
Most Popular Calculate AgeDog Age Calculator
Convert your dog's age to human years with our accurate dog age calculator.
Pet Owners Calculate Dog AgeCat Age Calculator
Find out your cat's age in human years with our easy-to-use cat age calculator.
Cat Lovers Calculate Cat AgeAge Calculator
Calculate your exact age in years, months, days, hours, and minutes.
Calculate NowDog Age
Convert your dog's age to human years with accurate calculations.
Convert Dog AgeCat Age
Find out your cat's age in human years instantly.
Convert Cat AgeKorean Age
Calculate your age using the traditional Korean age system.
Calculate Korean AgeBiological Age
Estimate your biological age based on health and lifestyle factors.
Check Biological AgeChronological Age
Calculate your precise chronological age from birth date.
Calculate AgeRetirement Age
Calculate when you can retire based on your birth year.
Plan RetirementGestational Age
Calculate pregnancy gestational age and due date.
Calculate WeeksAll Age Tools
Browse all 9 age calculators in one convenient location.
View All ToolsAll Age Calculators
About Our Age Calculators
Random Tools offers 9 free age calculators to help you calculate ages in different ways. Whether you want to know your exact age down to the second, convert your pet's age to human years, or find your age in the Korean system, our calculators provide instant, accurate results.
All calculations run entirely in your browser — no data is sent to any server, no account is needed, and results are instant. Perfect for birthdays, veterinary purposes, cultural age systems, retirement planning, and pregnancy tracking.
Why Use Our Age Calculators?
All age calculators are completely free with no signup, no downloads, and no ads. Your personal information stays in your browser — we process everything client-side for maximum privacy. Our calculators work on any device: desktop, tablet, or phone.
We're continuously expanding our calculator collection. Finance, health, and math calculators are coming soon!