Percentage Calculator
Calculate percent of a number, percentage share, and percentage increase or decrease for everyday math.
Calculators
OpenAge Calculator
Calculate exact age from a date of birth to today or any comparison date, with years, months, days, and total days.
All processing happens locally in your browser. Your input is never sent to a server or saved by Wraplet.
Exact age
26 years, 5 months, 26 days
- Total days
- 9,674
Formula or method
Age = comparison date - birth date
Completed years, months, and days are counted by calendar boundaries, so month length and leap years are handled through the selected dates.
Inputs
Use a valid birth date and a valid comparison date. If the comparison date is before the birth date, the calculator still reports the absolute difference.
Result
The result shows completed calendar years, months, and days, with total days as an additional reference.
Use cases
- Check age for forms, school records, events, eligibility dates, or personal milestones.
How to use
Enter the date of birth in the first field.
Choose the date you want to calculate age on, such as today, an event date, or a future date.
Review the exact age in completed years, months, and days plus the total day count.
Examples
Age Calculator example
Someone born on January 1, 2000 is 26 full years old on June 27, 2026, plus 5 completed months and 26 additional days.
Birth date 2000-01-01, age on 2026-06-27
26 years, 5 months, 26 days, with 9,674 total days
Frequently asked questions
Can I calculate age for a future date?
Yes. Set the comparison date to the future date to see how old someone will be on that day.
Does the age calculator include leap years?
Yes. The calculation uses real calendar dates, so leap years and different month lengths are reflected in the total.
What does total days mean?
Total days is the absolute number of days between the two selected dates. It is useful when you need a day count instead of a calendar age.
Is this suitable for legal age verification?
Use it as a helpful date calculator, but confirm any legal, school, travel, or eligibility requirement with the official rules for that situation.