Age Calculator of UPSC

This age calculator of UPSC tells you straight away whether your age lets you sit the Civil Services Exam in 2027, your exact age on 1 August, the last CSE year open to you and the attempts you have left. Then it checks the same date of birth against every other UPSC exam: IFoS, CAPF, ESE, CMS, IES/ISS, the Geo-Scientist exam, all five CDS courses and NDA. Each window is copied from UPSC’s own notice, with your category relaxation applied.

About the Age Calculator of UPSC

Most UPSC age calculators only do the Civil Services Exam. That’s fine if CSE is your only plan, but most aspirants also look at CAPF, CDS, ESE or IES/ISS, and each of those counts your age on a different date with different limits. The Age Calculator of UPSC answers the CSE question first, then puts every other exam in one table underneath.

• The CSE answer first. Eligible, too young or too old for the Civil Services in the year you pick, your last CSE year, and your attempts left.
• Every exam, one date of birth. 13 exams and courses, 19 exam cycles a year once you count CDS-I, CDS-II, NDA-I and NDA-II separately.
• From the notices. Every window comes from a 2026 or 2027 UPSC notice, and the notice number is shown next to it.
• Projected years are labelled. Where UPSC hasn’t notified a year yet, the row says “Projected”.
• Relaxations per exam. OBC, SC, ST, PwBD, ex-servicemen, government servants and the AFA pilot licence, each applied only where that exam’s notice allows it.
• Your years and attempts. The first and last year you can sit each exam, and your Civil Services attempts left.

Your date of birth stays in your browser. It isn’t sent anywhere or saved.

How to use the Age Calculator of UPSC

1. Enter your date of birth. Use the date on your Class 10 (Matriculation) certificate. UPSC accepts no other proof of age: not a birth certificate, an affidavit or a horoscope.
2. Pick your category and relaxations. Tick only what you can prove with a certificate.
3. Choose the exam year. It starts at the next year with exams still open.
4. Read the answer. The age calculator of UPSC leads with the Civil Services: eligible or not, your last CSE year and your attempts left.
5. Read the two tables. The first is every exam in that year. The second is every year each exam stays open to you.

Which date UPSC counts your age on

This is the part people get wrong, and the reason a UPSC age calculator exists at all. The exam date doesn’t matter. Each exam fixes its own date:

“21 to 32” means you must have turned 21 and must not have turned 32 on that day. So for CSE 2026 the window was born between 2 August 1994 and 1 August 2005, both dates included. Born on 1 August 1994, you turned 32 on the cut-off day and you’re out.

A worked example

A General category man born on 20 May 2003, checking the 2027 exams, with no relaxations:

1. CSE 2027. On 1 August 2027 he is 24 years, 2 months, 12 days old. The projected window is 2 August 1995 to 1 August 2006. Eligible.
2. ESE 2027. On 1 January 2027 he is 23 years, 7 months, 12 days. The notified window is 2 January 1997 to 1 January 2006. Eligible.
3. CAPF 2027. Eligible, but it’s his last year: the window closes for anyone born before 2 August 2003 in 2028.
4. CDS. Too old for IMA, INA and AFA in 2027. The CDS-I 2027 OTA course (from April 2028) still takes him; CDS-II doesn’t.
5. NDA. Long past it.

In all, 8 of the 19 cycles in 2027 are open to him, and the age calculator of UPSC headlines the one most people care about: eligible for CSE 2027. The Age Calculator of UPSC also shows CSE stays open to him from 2027 to 2034, eight years, but as a General candidate he has only six attempts, so attempts run out before age does.

UPSC age limits for 2027 as birth dates

The same rules written as the dates you need to be born between, for a General candidate with no relaxation. These are the figures the Age Calculator of UPSC uses for 2027:

Add your relaxation to the first column by moving it back that many years. An OBC candidate for CSE 2027 can be born as early as 2 August 1992; an SC candidate, 2 August 1990.

Am I eligible for UPSC? Find your year of birth

Because the Civil Services cut-off is 1 August, everyone born between 2 August of one year and 1 August of the next gets the same answer. This table is the Age Calculator of UPSC run for every such group, from the 2027 exam onwards, under the 2026 rules:

Two things the table doesn’t show. First, attempts: a General candidate born in 2005 has eleven CSE years but only six attempts. Second, PwBD and ex-servicemen relaxations, which push the upper end further. Put your own date of birth into the age calculator of UPSC above for both.

How to calculate your age for UPSC by hand

You don’t need a UPSC age calculator to do this, but it’s easy to slip by a day. The method:

1. Take the cut-off date. For CSE 2027 it’s 1 August 2027.
2. Count whole years. Born 20 May 2003: from 20 May 2003 to 20 May 2027 is 24 years.
3. Count whole months. From 20 May to 20 July 2027 is 2 months.
4. Count the days left. From 20 July to 1 August is 12 days.
5. Compare with the limit. 24 years, 2 months, 12 days is at least 21 and under 32, so the age condition is met.

The trap is the upper limit. “32” means you must not have reached your 32nd birthday by 1 August. Someone who turns 32 on 1 August itself is out, by one day. That’s why the age calculator of UPSC shows the exact window, 2 August 1995 to 1 August 2006 for CSE 2027, rather than a rounded age.

When is your last attempt?

Your last Civil Services year is whichever runs out first: your age or your attempts. The age calculator of UPSC works out both. Three examples, all for CSE from 2027:

• Born 15 March 2001, General. Age allows 2027 to 2032, six years, and General candidates have six attempts. Every year counts; skip one and the last attempt is gone.
• Born 15 March 2001, OBC. Age allows 2027 to 2035, nine years, with nine attempts. The same date of birth, three more years.
• Born 20 May 2003, General. Age allows 2027 to 2034, eight years, but only six attempts. Attempts run out first unless you skip two years.

An attempt is used only when you sit a paper of the preliminary exam, so applying and staying away doesn’t count. Enter the attempts you’ve already made, and the age calculator of UPSC shows what’s left.

An age calculator of UPSC vs an ordinary age calculator

An ordinary age calculator tells you how old you are today. That isn’t the question UPSC asks. Every UPSC exam fixes its own date (1 August for CSE, 1 January for ESE, the course start for CDS and NDA) and its own window, and then adds or withholds relaxations by category. So an age calculator of UPSC has to know the notice, not just the calendar. Your age today is shown too, but it’s the least useful number on the page.

Age relaxation by exam

The relaxations are not the same everywhere. This is the table the calculator works from, from the 2026 and 2027 notices:

EWS candidates get no age relaxation in any of these exams. IFoS is narrower on disability than CSE: its PwBD relaxation covers only low vision, partially deaf, and locomotor disability for leprosy-cured and acid attack victims.

Can relaxations add up?

Every notice says a category relaxation (SC, ST or OBC) is cumulative with ex-servicemen or PwBD. An SC candidate with a benchmark disability gets 15 years on CSE. None of the notices says two of the others add together, for example PwBD and ex-serviceman, so the Age Calculator of UPSC uses the larger one and tells you it has.

Civil Services attempts

An attempt counts the moment you sit any paper of the preliminary exam. Applying and not turning up doesn’t count. IFoS has the same attempt rules and counts them the same way. The other exams have no attempt limit; your age decides.

CDS age limits, course by course

CDS is where a single “age limit” misleads most. Each course has its own window, and the two exams a year are anchored differently. From the 2026 notices:

Note the first day: CDS-I starts on 2 January, CDS-II on 1 July. Someone born on 1 July 2003 is in the CDS-II window but would be one day too old for a CDS-I window built the same way. The age calculator of UPSC projects each cycle from its own notice, so this quirk carries forward. IMA, INA and OTA (men) are for unmarried men, OTA (women) for unmarried women; the AFA lines don’t limit sex, so the calculator doesn’t either.

NDA

NDA takes candidates who are 16½ to 19½ on the day the course starts. NDA-II 2026 was for those born between 1 January 2008 and 1 January 2011. There’s no relaxation for any category. For NDA on its own, with attempts left and every cycle to 2031, use the Age Calculator of NDA.

Notified and projected windows

As of 15 October 2026, UPSC has notified ESE 2027 and the Geo-Scientist exam 2027. The 2027 notices for CSE, IFoS, CAPF, CMS, IES/ISS, CDS and NDA aren’t out yet. The CSE 2027 notice is due in February 2027.

For those, the Age Calculator of UPSC moves the 2026 window on by exactly one year, which is how every one of these windows has moved between notices. The row says “Projected” so you know. If UPSC changes a rule, the notice wins. Check it before you apply.

Who the Age Calculator of UPSC is for

• Graduates planning CSE. The age calculator of UPSC shows how many years and attempts you have, and whether CAPF or IES/ISS close sooner.
• Engineering students. ESE counts age on 1 January, CSE on 1 August. The same birthday can leave you inside one and outside the other.
• Defence aspirants. CDS windows close fast. A year can be the difference between IMA and OTA only.
• Older candidates with a relaxation. Check which exams your relaxation actually applies to; CAPF has no PwBD relaxation, and CDS has none at all.

If you’re helping a whole coaching batch, the Age Calculator of UPSC takes one date of birth at a time but answers instantly, so you can run through a list quickly.

Common mistakes

• Counting age on the exam day. CSE prelims is in May; your age counts on 1 August. ESE counts on 1 January. A general-purpose UPSC age calculator that ignores this can be a year out.
• Reading “up to 32” as “32 is fine”. For CSE you must not have turned 32 on 1 August.
• Using a different date of birth. Only the Class 10 certificate date counts, and once you’ve entered it with UPSC it can’t be changed for any later exam.
• Assuming CDS has category relaxation. It doesn’t. Neither does NDA.
• Claiming a relaxation from an old notice. The CSE 2026 notice lists SC/ST, OBC, ex-servicemen, ECOs and SSCOs, disabled defence personnel and PwBD. A separate Jammu and Kashmir domicile relaxation, which some calculators still offer, isn’t in it.

How the Age Calculator of UPSC works

Inside the age calculator of UPSC, each exam is stored as the date-of-birth window from its latest notice, exactly as printed, both ends included. For a later year the window moves by whole years. Your relaxation, in years, moves the earliest date back. Then your date of birth is compared with the window: born after the last date means too young, before the first date means too old.

Your age on the cut-off date is counted the way a birthday is: whole months first, then the days left. A 29 February birthday is handled. “Today” is your device’s own date.

The years table runs each exam forward from the next open year to 2070 and reports the first and last year you fit. The exam year starts at next year because by June every UPSC exam of the current year has closed its applications.

Copy result in the age calculator of UPSC gives you the whole table as text, CSE answer first. You can also download it or save it as a PDF with the buttons under the tool.

What this can’t tell you

• It checks age only. Education, nationality, marital status, medical and physical standards are separate conditions in each notice.
• It can’t verify your category or relaxation certificate.
• Projected windows are our arithmetic, not UPSC’s. The Age Calculator of UPSC is updated as each new notice comes out, starting with CSE 2027 in February 2027.
• UPSC’s website was not reachable while we built this, so the notices were read from copies hosted on other sites. Each was checked for its notice number and date.

Other date tools: work out your exact age on any date with the age calculator, count the days to prelims with the date duration calculator, or, for NDA alone with every cycle to 2031, use the Age Calculator of NDA.