Age Calculators
16 free tools to calculate human age, pet age, birthday countdowns, school eligibility, zodiac signs, and planetary age—with guides for every calculator.
Human Age
Age Calculator
Calculate precise age in years, months, and days from date of birth.
Korean Age Calculator
Calculate international, traditional, and year age using all three Korean age systems.
Age Difference Calculator
Find the exact age gap between two people in years, months, and days.
Birthday Countdown Calculator
Count days and hours until your next birthday.
Age in Months Calculator
Convert birth date to total months for babies and pediatric forms.
School Admission Age Calculator
Check CBSE and ICSE school admission age eligibility by date of birth.
Half Birthday Calculator
Find your half birthday date and days until you turn half a year older.
Chronological Age Calculator
Exact age in years, months, days with total days lived and birthday countdown.
Pet Age
Dog Age Calculator
Convert dog years to human years using modern veterinary research.
Cat Age Calculator
Convert cat years to human years using veterinary aging stages.
Cat Pregnancy Due Date Calculator
Estimate cat pregnancy due date from mating date.
Dog Pregnancy Due Date Calculator
Estimate dog whelping date from mating date (63 days).
Horse Foaling Date Calculator
Estimate horse foaling date from breeding date.
Cultural & Fun
About the Age Calculators Hub
Hub listing all age calculators: Korean age, birthday countdown, pet age, zodiac signs, and school admission tools.
Use to discover the right age tool for your question instead of a generic age calculator.
Need 만 나이? Open Korean Age Calculator. Need days until birthday? Use Birthday Countdown.
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Related Calculators
Age Difference Calculator
Find the exact age gap between two people in years, months, and days.
Birthday Countdown Calculator
Count days and hours until your next birthday.
Korean Age Calculator
Calculate international, traditional, and year age using all three Korean age systems.
Planetary Age Calculator
See how old you would be on Mars, Jupiter, and other planets.
Age in Months Calculator
Convert birth date to total months for babies and pediatric forms.
Chinese Zodiac Calculator
Find your Chinese zodiac animal and element from your birth year.