Age Calculator
Calculate your exact age with our free age calculator and age calculator online. Easily calculate age using your date of birth with the age calculator from date of birth feature. Our date of birth age calculator, DOB calculator, and calculate age from DOB tool can calculate your chronological age accurately. You can also use the chronological age calculator, age difference calculator, and exact age calculator for birthdays and date comparisons. Wondering how old am I, how do I calculate my age, or how old will I be on a certain date? Enter your birth date and target date to calculate your age instantly.
How to use the Age Calculator
- Pick the birth date.
- Optionally pick a different “as of” date.
Age Calculator features and limits
- Exact calendar difference
- Limitation: time of day and time zones are ignored.
How the Age Calculator works
The calendar difference is computed from year, month and day parts with borrowing.
Privacy and browser processing
Your input is processed locally in this page and is not uploaded or stored by Best Web Tools. Your hosting provider may still keep ordinary server logs for page requests.
Frequently asked questions
Is the “as of” date optional?
Yes. It defaults to today.
Related tools
Browse all Calculators or return to the Best Web Tools homepage.
Why use the Age Calculator?
Forms and eligibility checks often ask for exact age. This avoids the 365-day-year shortcut.