Age Calculator — Exact Age in Years, Months and Days

By Reviewed by Prem Anand 1 min read
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Reviewed for FY 2025-26. Sourced from RBI Master Directions, CBDT circulars and the underlying statute. Runs entirely in your browser. Methodology →
Your Age
Total Months
Total Weeks
Total Days
Total Hours

How age is calculated

Age isn’t just the year difference. A person born on 15 November 2000 is not 25 years old on 1 November 2025 — they’re still 24 years, 11 months, and 16 days old.

The calculator accounts for leap years, month lengths, and the exact day. So a February 29 birthday gets handled correctly.

Why exact age matters

Government forms in India often ask for age as on a specific date — UPSC eligibility, PAN card, passport applications, school admissions. The “age as of” field lets you calculate age as on any cutoff date, not just today.

Retirement: EPFO retirement age is 58. If you’re born on 20 March 1970, your exact retirement date is 20 March 2028 — not just “2028”.

Senior citizen tax benefits kick in at 60. Exact DOB matters for the assessment year calculation. Check the Income Tax Calculator to see how senior citizen slabs change your liability.

The next birthday countdown

The calculator shows how many days until your next birthday. Useful for planning surprises, or just knowing.


Related: Date Calculator · Income Tax Calculator

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Calxo (calxo.in) is a free, ad-light calculator platform built for Indian users. Every tool covers EMI, SIP, GST, income tax, FD, PPF, salary, and conversions, using Indian rules, INR, and current tax slabs (not generic global formulas).

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Calxo is operated by Vignesh Sampath Kumar, an SEO Lead at PipeRocket Digital in Chennai and the founder of EVBlogs.in. Vignesh personally writes and reviews every calculator page.

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  • Updated the same week tax slabs or rules change
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Based in India. Founded 2026.

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