Online Age Calculator
How old am I? Enter your date of birth and calculate your exact age in years, months, days, hours, and more using our free DOB calculator.
Calculate Your Age
Select the day you were born
Leave empty to use today's date
How to Use the Date of Birth Calculator
- 1 Select your date of birth using the date picker.
- 2 Optionally choose a specific date to calculate age (leave empty for current age).
- 3 Click "Calculate My Age" to see your detailed age breakdown instantly.
Features of Our Age Calculator
- Accurate calculation including leap years and month variations
- Detailed breakdown in years, months, weeks, days, hours, minutes
- Past & future calculations - see how old you were or will be
- Local processing - no data leaves your browser
Accuracy & Privacy
This age calculator uses a reliable algorithm that correctly handles leap years and calendar differences. It's ideal for school forms, official documents, and personal planning.
No personal data is stored. All calculations happen locally in your browser, ensuring complete privacy and security.
What is an Online Age Calculator?
An online age calculator is a free web-based tool that calculates a person’s exact age from their date of birth (DOB). Instead of manually counting years and months, you can simply enter your birth date and instantly find the precise age in years, months, weeks, days, hours, minutes, and seconds. This age calculator is especially useful when you need accurate results for school admissions, job applications, medical records, passports, government documents, and fitness planning.
Our free DOB calculator also supports calculating age on a specific date in the past or future. For example, you can check how old you were on a previous date or how old you will be on an upcoming event such as a birthday, exam date, retirement plan, or anniversary.
Where is Age Calculation Used?
Age calculation is commonly required in many situations. Students need it during admissions, parents use it for school forms, and professionals use it for official documents. Our tool helps you calculate exact age quickly, so you avoid errors.
- School and college admission forms
- Government documents and identity verification
- Insurance policies and eligibility checks
- Fitness planning and health tracking
- Planning birthdays, anniversaries, and important events
Tips for Accurate DOB Age Calculation
- Always select the correct DOB format (YYYY-MM-DD).
- If you're calculating for eligibility, choose the official cutoff date in “Calculate Age As Of”.
- For exact results, use the same date format as in your official documents.
- If your DOB is near month-end, the months/days breakdown may change based on calendar length.
Learn More (External Resource)
Want to understand how age is calculated in calendars? You can read more on Wikipedia (Age) .
Frequently Asked Questions
How accurate is this age calculator?
It is extremely accurate and accounts for leap years, different month lengths, and all calendar variations.
Can I calculate my future age?
Yes, simply choose a future date in the "Calculate Age As Of" field to see how old you will be on that date.
Is my data saved or transmitted?
No, all calculations run locally in your browser. We don't store or transmit any of your personal data.
What is DOB in age calculation?
DOB stands for Date of Birth. It is used to calculate your exact age from birth date to today (or any selected date).
Does this calculator include leap years?
Yes. The tool correctly handles leap years and varying month lengths for accurate age results.