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Age Calculator
Instantly calculate your age in years, months and days with a live birthday countdown.
Open calculator Age & DatesAge Difference Calculator
Compare two birth dates and find the age gap.
Open calculator Age & DatesFriends Age Difference
Compare ages between friends.
Open calculator Age & DatesParent–Child Age Difference
Calculate the age gap between a parent and child.
Open calculator Age & DatesSibling Age Difference
Compare a brother's and sister's ages.
Open calculator Age & DatesMarriage Age Difference
Explore age differences between partners.
Open calculator Age & DatesMonth Calculator
Calculate months between two dates, add or subtract calendar months, and explore days in any month.
Open calculator Age & DatesDate Difference Calculator
Find days, weeks, months and years between two dates, with inclusive counting and optional clock time.
Open calculator Age & DatesGeneration Calculator
Find your generation by birth year, compare Gen Z and Millennials, and explore two research frameworks.
Open calculator Age & DatesChronological Age Calculator
Get calendar age in years, months and days.
Open calculator Age & DatesAge Percentage Calculator
See what percentage of your chosen age target or date range is complete, with a progress bar.
Open calculator Age & DatesAge in Days Calculator
Calculate total days since your birth date.
Open calculator Age & DatesAge in Weeks Calculator
Discover how many weeks old you are.
Open calculator Age & DatesAge in Months Calculator
Calculate your age in completed months.
Open calculator Age & DatesAge in Years Calculator
Find full years, extra months and days, upcoming birthdays and life milestones.
Open calculator Age & DatesBirthday Countdown
Count down to your next birthday.
Open calculator Age & DatesDays Left Calculator
See calendar days left and a live seconds countdown until any event.
Open calculator Age & DatesASQ Age Calculator
Find ASQ-3 and ASQ:SE-2 age intervals, chronological age and adjusted age for premature infants.
Open calculator Age & DatesIslamic Age Calculator
Calculate your Hijri age, Islamic calendar birth date, and next lunar birthday with Umm al-Qura.
Open calculator Country AgeKorean Age Calculator
Instantly compare traditional Korean counting age, international age and year age under the 2023 rule.
Open calculator Country AgeChinese Age Calculator
Calculate traditional Chinese age (虚岁), international age, lunar birth year and Chinese New Year milestones.
Open calculator Country AgeMother's Lunar Age & Pregnancy Chart
View a traditional lunar chart for entertainment, not medical prediction.
Open calculator Country AgeNepali Age Calculator
Convert AD and BS birth dates and calculate accurate Nepali age in BS years, months and days.
Open calculator Country AgeJapanese Age Calculator
Compare traditional Japanese kazoedoshi and international age, plus Reiwa, Heisei and Shōwa era dates.
Open calculator Country AgeVietnamese Age Calculator
Calculate traditional tuổi mụ, international tuổi Tây, Tết and Vietnamese zodiac (con giáp).
Open calculator Country AgeIndian Age Calculator
Calculate age on an Indian exam cut-off date and compare Gregorian and national Saka calendar dates.
Open calculator Country AgeThai Age Calculator
Calculate exact age, convert Gregorian and Thai Buddhist Era dates, and check historical pre-1941 Thai years.
Open calculator Animal AgeRabbit Age Calculator
Convert rabbit years or baby rabbit months to illustrative human years, view stages and a rabbit age chart.
Open calculator Animal AgeBird Age Calculator
Calculate bird age by hatch date or known years and months, with species-specific references and transparent human-years analogies.
Open calculator Animal AgeHorse Age Calculator
Calculate horse age from foaling date or known years and months; explore life stages and an illustrative human-years chart.
Open calculator Animal AgeDog Years Calculator
Convert dog age to approximate human years by size, compare life stages and puppy months.
Open calculator Animal AgeFish Age Calculator
Find fish age from a hatch date or known years and months; compare species lifespan ranges and illustrative human-year values.
Open calculator Animal AgeCat Age Calculator
Convert cat or kitten age to estimated human years with a feline age chart and life stages.
Open calculator Nature & PlantsTree Age Calculator
Estimate tree age from trunk circumference or DBH, species growth factors, inches or centimeters.
Open calculator Life & HealthFarmer's Carry by Age Calculator
Calculate carrying load as bodyweight percentage, distance, walking speed and age-group context with instant results.
Open calculator Life & HealthLife Expectancy Calculator
See average remaining years at your age using official SSA 2023 period life-table data; no personal death predictions.
Open calculator Life & HealthUSA Retirement Age Calculator
Find your Social Security full retirement age, age 62 eligibility and age 70 delayed-credit comparisons using SSA rules.
Open calculator Life & HealthSleep Calculator by Age
Calculate age-based sleep guidelines, suggested bedtimes, wake-up times and sleep duration with instant results.
Open calculator Life & HealthBiological Age Calculator
Estimate clinical PhenoAge from 9 lab biomarkers and chronological age, with published method and unit-aware inputs.
Open calculator Life & HealthFitness Age Calculator
Compare Rockport 1-mile walk VO₂ max estimates or measured VO₂ max against published age-group medians, with transparent limitations.
Open calculator Life & HealthHeart Age Calculator
Compare 10-year Framingham general cardiovascular risk and research-defined vascular age using measured blood pressure and cholesterol.
Open calculator SportsFootball Age Calculator
Check a player’s age on a cut-off date, custom U17/U19/U21 rules and published UEFA birth-year eligibility thresholds.
Open calculator SportsCricket Age Calculator
Calculate a player's age for cricket categories.
Open calculator SportsBasketball Age Calculator
Compare age to basketball competition limits.
Open calculator SportsLittle League Age Calculator
Find a young player's Little League age.
Open calculator SportsTennis Age Calculator
Calculate age for tennis eligibility categories.
Open calculatorDuring the redesign, most calculator links open the existing EasyAgeCalculator.com website. Each tool will be migrated to Next.js while preserving its URL.