Age Calculator | Exact Age in Years, Months and Days
Calculate exact age from a birth date or start date to any reference date, including years, months, days, and total days.
Exact Age Result
Calculate Exact Age Between Two Dates
Enter a birth date and reference date to calculate age in years, months, and days, plus the total number of days between the two dates.
Useful for Forms, Records and Milestones
Use exact age calculations for birthdays, school forms, eligibility checks, family records, anniversary dates, and any situation where the reference date matters.
About This Tool
Age Calculator computes your exact age in years, months, and days from your date of birth to today or any target date. It is used for eligibility checks, birthday countdowns, and verifying age requirements.
When to Use It
Use this when you need the exact number of days until a birthday, when checking whether someone meets a minimum age requirement, or when calculating how much time has passed since a specific event.
How to Use
- Enter your date of birth.
- Optionally set a target date instead of today.
- Click Calculate to see your age broken down into years, months, and days.
- Review the bonus breakdown in total weeks, days, and hours.
Frequently Asked Questions
Can it calculate age on a future date?
Yes. Set any target date in the future and the tool will calculate what the age will be on that date.
Does it account for leap years?
Yes. Leap year days are included so the day count is always precise.
Can I find the interval between two historical dates?
Yes. Set both a custom start date and a custom target date to calculate the span between any two points in time.