Age Calculator
What is the Age Calculator?
The Age Calculator is a free online tool that computes your exact age from your date of birth to today — or to any target date you specify. It breaks down your age into years, months, and days, giving you a precise result instantly.
Knowing your exact age down to the day can be useful for a wide range of purposes, from age verification and medical records to birthday countdowns and personal milestones. Our calculator handles leap years and varying month lengths automatically, so the result is always accurate.
Key Features
- Calculates exact age in years, months, and days
- Supports any birth date including leap year birthdays
- Option to calculate age at a specific future or past date
- Instant results with no page reload
- Free and requires no account or download
How to Use the Age Calculator
- 1
Enter Your Birth Date
Select your date of birth using the date picker or type it in manually.
- 2
Set the Target Date
By default the calculator uses today's date. You can change this to any past or future date if needed.
- 3
View Your Age
Your exact age in years, months, and days will appear immediately after entering the dates.
Who Uses the Age Calculator?
Personal Use
Find out exactly how old you are today, or calculate how old you will be on a future date.
Age Verification
Quickly verify whether a person meets a minimum age requirement for services, registrations, or legal purposes.
Medical & Health Records
Calculate patient age accurately for forms, prescriptions, and health assessments.
Birthday Countdowns
Find out how many days remain until your next birthday or a special anniversary.
Frequently Asked Questions
How is age calculated?
Age is calculated by finding the difference between your birth date and today (or a target date). The calculator counts complete years, then the remaining complete months, and finally the remaining days.
Does it account for leap years?
Yes. The calculator correctly handles leap years, so if your birthday is on February 29, it will still calculate your age accurately.
Can I calculate age for a past or future date?
Yes. You can set any target date — past or future — to find out your age at that specific point in time.
Is this calculator accurate?
Yes. It uses precise date arithmetic to account for different month lengths and leap years, ensuring an accurate result every time.