🎂 Age Calculator
Enter your date of birth to instantly see your exact age broken down into years, months, and days — along with total days, weeks, hours, and your next birthday countdown. It's completely free and runs entirely in your browser with no data uploaded anywhere.
Date Inputs
Leave "Age at Date" empty to use today.
About
This age calculator computes the precise difference between any two dates, showing years, months, days, total weeks, total hours, total months, and the countdown to the next birthday. You can also set a custom reference date to calculate age at any point in time — useful for legal, medical, or historical purposes. Because everything runs client-side in your browser, your birth date never leaves your device.
How to use
- Enter your date of birth in the "Date of Birth" field.
- Leave "Age at Date" empty to use today, or set a specific date to calculate age at that point in time.
- Click "Calculate" (or press Enter) to see your exact age instantly.
- Review the results: exact age in years/months/days, total days, weeks, hours, months, and next birthday countdown.
- Click "Copy" to copy your age to the clipboard, or hit "Reset" to start over.
FAQ
- Is this age calculator free?
- Yes, completely free — no account, no subscription, no hidden fees. Just open the page and start calculating.
- Does it upload my birth date to a server?
- No. All calculations happen entirely inside your browser. Your birth date never leaves your device — there is no server involved at all.
- Does it work offline?
- Yes. Once the page is loaded, it works with no internet connection. It's a fully offline tool — no requests are made after the initial page load.
- Can I calculate age at a specific past or future date, not just today?
- Yes. Fill in the "Age at Date" field with any date — past or future — and the calculator will show your exact age at that point in time.
- What units does the age calculator show?
- It shows your age in years, months, and days (primary result), plus total days, total weeks, total hours, total months, and the number of days until your next birthday.