Age Calculator
Exact AgeCalculate your exact age in years, months, days, hours, and minutes. Get your next birthday countdown, zodiac sign, birthstone, and life milestone dates — all instantly.
Enter Details
Quick Age Check
Enter your date of birth to calculate your age
What this Age Calculator gives you
Exact Age
Precise age in years, months, and remaining days — accounting for leap years and month lengths.
Total Time Lived
Your age expressed as total days, weeks, months, hours, minutes, and even seconds.
Next Birthday
Exact days remaining until your next birthday, with the day of the week it falls on.
Zodiac Sign
Your Western zodiac sign and symbol, automatically determined from your birth date.
Birthstone
Your traditional birthstone, one of 12 gemstones assigned to each calendar month.
Life Milestones
Key birthday milestones — 18th, 21st, 30th, 50th, 100th — with exact dates and countdowns.
Zodiac Sign Date Ranges
Aries
Mar 21 – Apr 19
Taurus
Apr 20 – May 20
Gemini
May 21 – Jun 20
Cancer
Jun 21 – Jul 22
Leo
Jul 23 – Aug 22
Virgo
Aug 23 – Sep 22
Libra
Sep 23 – Oct 22
Scorpio
Oct 23 – Nov 21
Sagittarius
Nov 22 – Dec 21
Capricorn
Dec 22 – Jan 19
Aquarius
Jan 20 – Feb 18
Pisces
Feb 19 – Mar 20
Birthstones by Month
January
Garnet
February
Amethyst
March
Aquamarine
April
Diamond
May
Emerald
June
Pearl
July
Ruby
August
Peridot
September
Sapphire
October
Opal
November
Topaz
December
Turquoise
Frequently Asked Questions
How is exact age calculated?
The calculator computes age by finding the difference between your date of birth and the reference date (today by default). It accounts for varying month lengths and leap years to give you the precise count of years, months, and remaining days.
Can I calculate age on a specific date?
Yes! You can change the "Calculate Age As Of" date to any date you want — past or future. This is useful for calculating age at a historical event, or how old you will be on a future date.
How is the zodiac sign determined?
Zodiac signs (Western astrology) are determined by the month and day of birth. For example, Aries runs from March 21 to April 19, Taurus from April 20 to May 20, and so on. The calculator automatically assigns the correct sign.
What is the "Calculate Age As Of" date?
This is the reference date for the age calculation. By default it is set to today. Change it to calculate your age on any specific date — useful for legal, educational, or historical purposes.