Age Calculator
Find your exact age in years, months, days, hours, and more — plus next birthday countdown and life milestones
Quick:
Your Age
Enter your date of birth and click Calculate.
Frequently Asked Questions
Exact age is calculated by finding the difference between your date of birth and the target date (today by default). The calculator counts complete years first, then remaining complete months, then remaining days. Leap years are automatically handled — if you were born on February 29, your birthday is counted on March 1 in non-leap years.
Age in total days is the exact number of calendar days you have been alive, counting every day from your date of birth to today. This includes all leap year days. On average, a person who is 30 years old has lived about 10,958 days, accounting for leap years.
The 12 Western zodiac signs: 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). Your sign is determined solely by your birth month and day.
Yes! The "Age at Date" field defaults to today but you can set it to any past or future date. This lets you calculate how old you will be on a specific future date, or verify how old someone was on a historical date.
The calculator automatically shows you how many days until your next birthday after you enter your date of birth and calculate. It accounts for leap years (e.g., if you were born on Feb 29, your next birthday in a non-leap year is counted to Mar 1). If today is your birthday, it shows a special message!
Age in hours is calculated by multiplying the total number of days you've been alive by 24. For example, if you are 10,000 days old, you have lived approximately 240,000 hours. Note that this is an approximation as it doesn't account for the exact time of birth within a day.
About This Age Calculator
This free Age Calculator computes your exact age from your date of birth to any target date. It shows your age in years, months, days, total weeks, total days, and approximate hours. Additional features include a next birthday countdown, zodiac sign, birth day of the week, and a life milestones table (first steps at 1, school at 5, driving at 16, retirement at 65, etc.).
Age in Days Reference
| Age | Approx. Days | Approx. Weeks |
|---|---|---|
| 1 year | 365 | 52 |
| 5 years | 1,826 | 261 |
| 10 years | 3,652 | 522 |
| 18 years | 6,574 | 939 |
| 25 years | 9,131 | 1,304 |
| 30 years | 10,958 | 1,565 |
| 40 years | 14,610 | 2,087 |
| 50 years | 18,263 | 2,609 |
Zodiac Sign Reference
| Sign | Dates | Symbol |
|---|---|---|
| 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 | ♓ |
