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Date-based age and birthday insights
Age Calculator
Calculate your age in years, months and days, with optional birth-time details, a birthday countdown and other date-based insights.
- Exact age
- Optional birth time
- Birthday countdown
- Live updates
About DailySeeTo Age Calculator
Calculate your exact age from your date of birth
DailySeeTo's free Age Calculator helps you calculate your exact age from your date of birth. Find your age in years, months, and days, and explore additional time measurements such as weeks, days, hours, minutes, and seconds. You can also use the calculator to find your next birthday and other useful age-related information.
Age Calculator by Date of Birth
Calculate your exact age instantly
Use this free age calculator by date of birth to find your current age quickly. Enter your birthday and the calculator determines the difference between your birth date and today's date.
Your result can be displayed in years, months, and days, with additional calculations for weeks, total days, hours, minutes, and seconds where supported.
How Old Am I?
Find your current age from your birthday
Wondering how old you are today? Enter your date of birth to calculate your current age. The calculator compares your birthday with the calculation date and gives you your age in years, months, and days.
How to Use the Age Calculator
Simple 5-step process
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Step 1
Enter your date of birth and optionally your birth time if supported.
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Step 2
Instantly see your age in years, months, days, and other available time units.
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Step 3
Use the live update feature if you want to see your age change in real time.
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Step 4
Explore available details such as total days, birthday information, and other age statistics.
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Step 5
Copy your age details when you want to save or share the result.
Calculate Your Exact Age
Years, months, days and more
Your exact age can be calculated by comparing your date of birth with the date you want to calculate your age against. This gives you a more detailed result than simply subtracting birth years.
Depending on the available calculator features, you can also view your age in weeks, days, hours, minutes, and seconds.
How Many Days Old Am I?
See your total age in days
If you want to know how many days old you are, enter your date of birth into the calculator. It can calculate your total number of days based on the dates provided. You can also explore other available time measurements such as weeks, hours, minutes, and seconds.
Comparing Two Ages
Compare two dates
This calculator accepts one date of birth at a time. To compare two people, calculate each age separately and compare the year, month, and day results.
Birthday Calculator
Find your next birthday
Your birthday can be used to calculate useful date information, including your next birthday and the amount of time remaining until it.
Enter your date of birth to see available birthday information and use the calculator as a simple birthday countdown.
Fascinating Age Facts
Did you know?
Your Heart Never Stops
Your heart beats thousands of times each day. Over many years, those beats add up to billions of heartbeats.
You've Lived Thousands of Days
Once you know your exact age, you can convert it into days and see how many days have passed since your birth.
Every Birthday Is Unique
Your exact age in days, hours, minutes, and seconds changes continuously, making every moment of your life unique.
Age Is More Than a Number
Age can be represented in different ways, including years, months, weeks, days, hours, minutes, and seconds.
Popular Uses for Age Calculator
How people use this tool
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Planning milestone birthday celebrations
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Checking age requirements for applications and services
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Creating personalized birthday cards and gifts
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Calculating important dates and milestones
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Tracking relationship anniversaries and milestones
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Personal planning and age-based goals
Why Use Our Age Calculator
Simple, convenient, and easy to use
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Start instantly without creating an account
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Get age calculations directly in your browser
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Perform calculations whenever you need them
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Your date of birth is used for the calculation
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Works across mobile, tablet, and desktop devices
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Live update support for real-time age calculations
Frequently Asked Questions About Age Calculators
Common questions about age, birthdays, and date calculations
What is an age calculator?▼
An age calculator uses a date of birth to calculate age in years, months, and days. This tool also shows available totals such as days, weeks, hours, and minutes.
How do I calculate my age from my date of birth?▼
Enter your date of birth into the age calculator and compare it with today's date. The calculator determines the difference between the two dates and displays your age in years, months, and days.
How old am I today?▼
Enter your date of birth to find out how old you are today. The calculator compares your birthday with today's date and gives you your current age in years, months, and days.
How do I calculate my exact age?▼
This calculator compares your date of birth with today's date and reports your age in years, months, and days, along with available total time measurements.
Can I calculate my age in days?▼
Yes. This calculator can show your total number of days lived in addition to your age in years, months, and days. It can also provide other time-based measurements such as weeks, hours, minutes, and seconds.
How many days until my birthday?▼
Enter your date of birth and the calculator can determine your next birthday and the number of days remaining until it. If your birthday is today, the calculator can identify it as your birthday.
Can this calculator compare two people's ages?▼
This calculator accepts one date of birth at a time. To compare two people, calculate each age separately and compare the results.
Can I calculate my age in years, months, and days?▼
Yes. The calculator shows your age in years, months, and days, with additional total time measurements in the results.
What is a birthday calculator?▼
A birthday calculator uses your date of birth to provide useful birthday information, such as your next birthday, the number of days until your birthday, and the weekday on which you were born.
Can I use my birth time in an age calculator?▼
Yes. Birth time is optional and can be entered for more detailed hour-based age calculations. You can calculate age with only a date of birth as well.
What is an age calculator by birthday?▼
An age calculator by birthday calculates your current age using your birthday or date of birth. It can also be used to determine your next birthday, birthday countdown, and other date-related information.
Is this online age calculator free?▼
Yes. This online age calculator is free to use. Enter your date of birth to calculate your age and view available birthday and age information.