Age Calculator

  • Birthday Countdown Calculator
    Count down to your next birthday. Enter your birth month and day to see the exact days, hours, minutes, and seconds until you celebrate again.
  • Age to Birthday Calculator
    Find out exactly how many days until your next birthday. Enter your birth date and today's date to count down the days, weeks, and year.
  • Age in Years Calculator
    Calculate your exact age in complete years from your birth date. Free age calculator showing total days lived and precise fractional age.
  • Age in Years, Months, and Days Calculator
    Calculate exact age in years, months, and days between a birth date and any date using accurate calendar borrowing and leap-year handling.
  • Age in Seconds Calculator
    Find out exactly how many seconds, minutes, hours and days old you are. Enter your birth date and an as-of date to calculate your age in seconds.
  • Age in Weeks Calculator
    Calculate your exact age in weeks from your date of birth. Enter a birth date to see total weeks, remaining days, and total days lived.
  • Age in Months Calculator
    Calculate your exact age in months from your birth date to today. Enter birth and current dates to get total complete months, plus years and months.
  • Age in Minutes Calculator
    Find out exactly how many minutes old you are. Enter your date of birth to instantly calculate your age in minutes, hours, days and seconds.
  • Age in Hours Calculator
    Find out exactly how many hours old you are. Enter your birth date to calculate your age in hours, days, and minutes instantly.
  • Age in Days Calculator
    Find out exactly how many days old you are. Enter a birth date and an as-of date to get your age in days, weeks, months, and hours.
  • Lunar Age Calculator
    Calculate your lunar age (East Asian nominal age) from your birth year. Used in Korea, China and Vietnam, where you start at age 1.
  • Korean Age Calculator
    Calculate your Korean age instantly. The traditional Korean age system adds 1 to your age from birth — enter your birth year and current year.
  • Hamster Age Calculator
    Convert your hamster's age into human years. Enter years and months to estimate how old your hamster is in equivalent human years (~30:1 ratio).
  • Guinea Pig Years to Human Years Calculator
    Convert your guinea pig's age into human years instantly. Uses a lifespan-ratio of about 12.5 human years per guinea pig year.
  • Bird Age Calculator
    Convert your bird's age into human years. Enter your bird's age, its species lifespan, and human lifespan to estimate the equivalent human age instantly.
  • Cat Age Calculator
    Convert your cat's age into human years with this free Cat Age Calculator. Uses the standard veterinary scale: 15 years for year one, +9 for year two, +4 after.
  • Age Calculator
    Enter your date of birth to get your age in years, months, and days, see the date span from birth to today, and days until your next birthday.

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