Age Calculator

Our Free Online Age Calculator provides an accurate, leap-year–aware calculation of your age down to the exact day. Whether you need to verify a legal eligibility date, plan celebratory milestones, or simply satisfy your curiosity, SciencePin’s tool makes it fast and easy—no signup required.

Why Use Our Free Age Calculator?

• Precise Results: Accounts for leap years, month lengths, and time-zone differences.
• Custom Date Comparison: Calculate your age as of today or any date in the past or future.
• Instant & Mobile-Friendly: Responsive design works seamlessly on any device.
• Fully Free: No registration or personal data required—use anytime.

How to Calculate Your Age

1. Select your Birthdate from the date picker above.
2. Optionally choose a Comparison Date (defaults to today).
3. Click the Calculate button to display your age in years, months, and days.
4. Use Reset to clear and begin a new calculation.

Frequently Asked Questions

Q: Is this tool safe and private?

A: Yes—your input stays in your browser with no data sent to servers.

Q: Can I calculate someone else’s age?

A: Simply enter their birthdate and a comparison date to get results.

Explore More Free Tools

Discover our full suite of utilities at SciencePin Tools, including a BMI Calculator, Date Difference Tool, and more.