Age Calculator
Discover your exact age timeline with precision calculations across years, months, days, hours, and minutes from any birthdate. Essential for age verification processes, milestone celebrations, and comprehensive chronological analysis with instant accurate results.
Leave as today's date for current age
Complete Guide: Age Calculator
Everything you need to know about using this tool effectively
Enter a birth date and an optional target date to calculate your exact age broken down into years, months, days, hours, minutes, and seconds. The calculator also shows how many days remain until your next birthday and your total age in days. All calculations happen in your browser with no data sent anywhere.
The age calculator works by computing the difference between two calendar dates, accounting for varying month lengths and leap years. It calculates the exact number of complete years, then the remaining complete months, then the leftover days. Hours, minutes, and seconds are derived from the total time difference multiplied by 24, 60, and 60 respectively.
Birthday planning
Determine exact age for milestone birthdays, party themes, or age-restricted events.
Legal documentation
Verify exact age for contracts, insurance forms, or age-sensitive applications.
Age verification
Check if someone meets a minimum age requirement for a program, job, or service.
Fun facts and trivia
Find out your age in total days, hours, or minutes for social media posts or personal curiosity.
Enter your birth date
Select or type your date of birth using the date input field.
Set a target date
Leave it as today or pick a specific date to calculate your age on that day.
View your results
The calculator instantly displays your age in years, months, days, and more.
Use the target date feature to calculate how old you will be on a future date
The calculator accounts for leap years automatically
Check your age in total days for a fun perspective on how long you have been alive
Use it to verify age requirements for licenses, retirement, or senior discounts
How accurate is this age calculator?
The calculator is precise down to the second. It accounts for leap years and varying month lengths to give you the exact difference between two dates.
Can I calculate someone's age on a future date?
Yes, you can set any target date to see exactly how old someone will be on that day. This is useful for planning events or checking future age requirements.
Does this calculator account for leap years?
Yes, the calculation logic handles all leap year rules, including the century and 400-year exceptions. Your results will always be accurate.
Is my birth date stored or shared?
No, all calculations happen entirely in your browser. Your birth date is never sent to a server or stored anywhere.
Can I find out my age in just days or hours?
Yes, the results include your total age in days, hours, minutes, and seconds in addition to the years-months-days breakdown.