Free Age Calculator — Accurate Online Birthday Calculator
AgeCalculator.website brings a precise age counter that shows your age in years, months and days, plus total time lived in weeks, hours and seconds. The interface is mobile-first, fast and privacy-friendly.
Why this calculator
Everything runs on your device; nothing is uploaded. You also get next birthday date with remaining days and fun milestones like 10,000 days or 1 billion seconds. Leap year handling is built-in.
Highlights
- Exact Y-M-D breakdown with optional time of birth.
- Automatic timezone with manual override.
- Next birthday countdown and upcoming milestone.
- Google Website Translator for twenty languages.
- SEO-first markup, fast CSS and accessible controls.
How to use
- Enter your date of birth. Optionally add time and confirm timezone.
- Tap Calculate Age to get results. Press Share to copy a link with inputs.
Keywords used naturally
Age calculator, birthday calculator, date of birth calculator, calculate age in years months days, online age counter, next birthday calculator, leap year birthday, exact age finder, age in days and weeks.
FAQ
Does it work offline?
After first load most browsers can run it offline because the logic is pure JavaScript.
Is my data private?
Yes. Inputs never leave your browser.
Conclusion
Bookmark this free age calculator and share it with friends and family.