Calculate your age in years, months, days, hours, minutes, and seconds. Find out how old you are, when you'll turn a specific age, or calculate age difference between two people. Free and accurate.
Calculate your exact age in 3 simple steps:
Select your date of birth from the calendar picker. The calculator accepts any date from the past 150 years.
Select the date to calculate age on. Default is today. Use "Next Birthday" button to see age on your next birthday.
See your age in years, months, days, hours, minutes, and seconds. Plus upcoming milestones and next birthday countdown.
The global average life expectancy is around 73 years, though it varies significantly by country. Japan has the highest at 85 years.
If you're 30 years old, your heart has beaten approximately 1.1 billion times! The average heart beats 70-80 times per minute.
If you're 25 and sleep 8 hours daily, you've slept for about 3,042 days - that's 8.3 years of your life spent sleeping!
In a room of just 23 people, there's a 50% chance two people share the same birthday! With 70 people, it's 99.9%.
Your body completely replaces itself every 7-10 years. You're literally not the same person you were a decade ago!
The "1 dog year = 7 human years" is a myth. A 1-year-old dog is actually equivalent to a 30-year-old human!
Calculate your exact age instantly in years, months, days, hours, minutes, and seconds. Real-time updates as you change dates.
Uses precise date calculations accounting for leap years, different month lengths, and all calendar variations.
View age in years, months, weeks, days, hours, minutes, and seconds. See which format makes most sense for you.
See exactly when your next birthday is and how many days left. Plan celebrations in advance!
Discover upcoming age milestones like 10,000 days old, 500 months old, or 1 billion seconds old!
Calculate age on any device - phone, tablet, or computer. Works perfectly everywhere.
Age is calculated by finding the difference between your birth date and target date, accounting for leap years, varying month lengths, and calendar adjustments. We calculate years, then remaining months, then remaining days for exact age.
If you were born on February 29, your birthday is celebrated on February 28 or March 1 in non-leap years. Our calculator accurately handles leap year birthdays and shows when your actual birthday occurs.
Yes! Enter any birth date and select any target date. Calculate age on past dates, future dates, or specific milestones. Great for planning or historical calculations.
Our calculator shows your exact age in days in the breakdown section. For example, a 30-year-old is approximately 10,950 days old (accounting for leap years). Check your total days in the results.
Our calculator automatically shows which day of the week you were born (Monday, Tuesday, etc.). This is calculated using the Gregorian calendar and accounting for all historical date adjustments.
Check the "Age Milestones" section to see upcoming special age milestones including 10,000 days, 500 months, 1 billion seconds, and more. These make fun celebration dates!
Calculate each person's age separately using their birth dates, then subtract. Or enter one person's birth date and set target date to the other person's birth date to see exact difference.
Yes! Our calculator uses the Gregorian calendar which is the international standard. Age is calculated the same way worldwide, though some cultures celebrate age differently (like Korean age).
