Age
Exact Age Calculator
Your age in years, months and days, plus days lived and your next birthday.
Open tool →YOUR DATE TOOLBOX
Age, date and birthday tools
56 useful ways to look at time. Find yours.
56 tools
No tools found for this search
Try “birthday”, “days” or “relationship”.
Age
Age
Age on a Specific Date
Find your age on a past or future date.
Open tool →Age
Age in Months Calculator
Count complete calendar months since birth, with the remaining days.
Open tool →Age
Age in Weeks Calculator
See your complete weeks lived and the remaining days.
Open tool →Age
Age in Days Calculator
Count your days lived and create a keepsake image of your number.
Open tool →Age
Age in Hours Calculator
Estimate hours lived using a birth time and an explicit time zone.
Open tool →Age
Age in Minutes Calculator
See how many minutes have elapsed since your birth.
Open tool →Age
Age in Seconds Live Counter
Watch your seconds lived update in real time and save a snapshot.
Open tool →Age
Decimal Age Calculator
Express your age as decimal years using the actual length of your birthday year.
Open tool →Age
Age at Death Calculator
Calculate a lifespan between recorded birth and death dates, without predictions.
Open tool →Age
Birth Year from Age Calculator
Find the possible birth year or years for a completed age.
Open tool →Age
Birth Date from Exact Age
Find birth dates consistent with an age in years, months and days.
Open tool →Age
Age from Birth Year
Enter a birth year to see the possible age range today.
Open tool →Age
How Old Will I Be in a Given Year?
See your age at the start and end of a year you choose.
Open tool →Age
When Will I Turn This Age?
Find the date you turn 18, 30, 40, 50, 60, 65 or another age.
Open tool →Birthdays
Birthdays
Next Birthday Countdown
Find the date, weekday and days until your next birthday.
Open tool →Birthdays
Birthday Weekday Calculator
Choose a year to see which weekday your birthday falls on.
Open tool →Birthdays
Days Since Your Last Birthday
Count the days since your last birthday and your progress toward the next.
Open tool →Birthdays
Half Birthday Calculator
Find your half birthday, defined here as six calendar months after your birthday.
Open tool →Birthdays
Golden Birthday Calculator
Find the birthday when your age matches the day of the month you were born.
Open tool →Birthdays
Your Next Ten Birthdays
Plan ahead with the dates, weekdays and ages of your next ten birthdays.
Open tool →Birthdays
Leap Day Birthday Calculator
Compare February 28 and March 1 celebrations and find your next February 29 birthday.
Open tool →Birthdays
Next Weekend Birthday
Find your next birthday that falls on a Saturday or Sunday.
Open tool →Milestones
Milestones
10,000 Days Old Calculator
Find your 10,000th day, or choose a 1,000, 5,000, 15,000 or 20,000-day milestone.
Open tool →Milestones
Your Next Thousand-Day Milestone
See which thousand-day milestone comes next and when to celebrate it.
Open tool →Milestones
When Will I Be a Billion Seconds Old?
Find your billionth second using your chosen birth time and time zone.
Open tool →Milestones
When Will I Be a Million Minutes Old?
Find the date of your millionth minute and create a milestone card.
Open tool →Milestones
Your Upcoming Life Milestones
Explore a timeline of round-number days and upcoming birthdays.
Open tool →Comparison
Comparison
Age Difference Calculator
Compare two birth dates in years, months and days and see who is older.
Open tool →Comparison
How Old Was I When They Were Born?
Find the first person’s age when the second person was born.
Open tool →Comparison
Combined Age Milestone Calculator
Find when your combined completed ages reach or pass a chosen milestone.
Open tool →Dates & durations
Dates & durations
Exact Date Difference Calculator
Break a date interval into calendar years, months and days.
Open tool →Dates & durations
Days Between Dates Calculator
Count calendar days between dates, with an option to include the end date.
Open tool →Dates & durations
Weeks Between Dates Calculator
Count complete weeks between dates and the remaining days.
Open tool →Dates & durations
Months Between Dates Calculator
Count complete calendar months without assuming every month has thirty days.
Open tool →Dates & durations
Years Between Dates Calculator
Find the complete years elapsed, plus the remaining months and days.
Open tool →Dates & durations
Business Days Calculator
Count Monday-to-Friday working days and enter additional dates to exclude.
Open tool →Dates & durations
Weekends Between Dates Calculator
Distinguish complete weekends from individual Saturdays and Sundays in an interval.
Open tool →Dates & durations
Add or Subtract from a Date
Add or subtract days, weeks, months or years. Includes 30, 60, 90 and 100-day shortcuts.
Open tool →Dates & durations
Time Since a Date Calculator
Count days, weeks and calendar years since an event.
Open tool →Dates & durations
Countdown to a Date
Follow the time remaining until an event, with your chosen time and time zone.
Open tool →Calendar
Calendar
Day of the Week Calculator
Find the weekday of your birth date or any other past or future date.
Open tool →Calendar
ISO Week Number Calculator
Find the ISO week number and week-year, including dates around New Year.
Open tool →Calendar
Day of Year Calculator
Convert a date to its day-of-year number, or find the date for an ordinal day.
Open tool →Calendar
Leap Year Calculator
Check whether a year is a leap year and find the next one.
Open tool →Calendar
Days in a Month Calculator
Choose a month and year to see their exact number of days.
Open tool →Calendar
Year Progress and Days Remaining
See days elapsed, days remaining and progress through the year.
Open tool →Relationships
Relationships
How Long Have We Been Together?
Count your days together and find your next relationship anniversary.
Open tool →Relationships
Relationship Milestone Dates
Find your 100, 500, 1,000 and 5,000 days together on a shareable timeline.
Open tool →Relationships
How Long Have We Been Married?
See your years, months and days of marriage, plus your total days together.
Open tool →Relationships
Next Wedding Anniversary Calculator
Find the date and year count of your next wedding anniversary.
Open tool →Baby & child
Baby & child
Baby Age in Months and Weeks
See your baby’s calendar age, complete weeks and days lived.
Open tool →Baby & child
Child Monthly Milestone Calendar
See upcoming monthly anniversaries from birth, without developmental or medical benchmarks.
Open tool →Life in numbers
Life in numbers
My Life in Weeks and Months
Visualize the time you have lived. An optional future grid is your choice, never a prediction.
Open tool →Life in numbers
Your Life in Numbers
Discover your days lived, complete weekends, Christmas days and leap years experienced.
Open tool →Work & projects
Work & projects
Work Tenure Calculator
Calculate time since your start date and your next work anniversary.
Open tool →