Calculate Exact Age
Chronological calendar breakdown & cutoff verification
年齢計算機 — 正確な満年齢・生後日数・次回誕生日カウント | Cruse
生年月日から満年齢、月数、生後経過日数、次回誕生日までの日数を瞬時に計算するオンライン年齢チェッカー。
ツールの使い方
Enter Date of Birth (DOB)
Select your exact date, month, and year of birth from the calendar picker or enter directly in DD/MM/YYYY format.
Specify Cutoff Target Date
By default, the tool calculates your age as of today. To verify exam eligibility, select the specific cutoff date (e.g. 1st August).
Select Category Relaxation (Optional)
Choose your reservation category (General/EWS, OBC, SC/ST, or PwD) to evaluate government exam upper age limits.
Copy Official Eligibility Proof Statement
View exact breakdown in years, months, days, and total hours. Click "Copy Proof Statement" for your job or exam application.
技術仕様・標準規格
| Parameter / Standard | Specification |
|---|---|
| Calculation Engine | Calendar Gregorian astronomical logic with exact leap year handling |
| Breakdown Metrics | Years, Months, Days, Total Weeks, Total Days, Hours, Minutes, and Seconds |
| Exam Cutoff Presets | UPSC CSE (Aug 1), SSC CGL (Aug 1), IBPS PO (Apr 1), NDA / CDS, State PSC |
| Category Rules | Standard DoPT age relaxations (OBC +3y, SC/ST +5y, PwD +10y) |
| Birthday Countdown | Live days and day-of-the-week countdown to upcoming birthday |
| Client Privacy | 100% In-Browser. Birthdates are strictly confidential and never transmitted. |
よくある質問
How does an online age calculator handle leap years and differing month lengths?
Standard division by 365.25 produces errors in exact day counts. Our algorithm uses chronological calendar math: it accounts for 28/29 days in February (leap years), 30-day and 31-day months individually to determine the precise legal age in completed years, remaining months, and remaining days.
Why do Indian government exams like UPSC calculate age as of August 1st?
Under the Department of Personnel and Training (DoPT) civil services examination rules, if an exam is held in the first half of the calendar year, the crucial date for age calculation is August 1 of that exam year. This standardizes eligibility across candidates from universities with differing academic sessions.
What is the age relaxation for OBC, SC, and ST categories?
According to Government of India norms: OBC (Non-Creamy Layer) candidates receive an upper age relaxation of 3 years; SC/ST candidates receive 5 years; and Persons with Benchmark Disabilities (PwBD) receive 10 years (General) up to 15 years (SC/ST).
Can I use this age calculation as proof for filling job application forms?
Yes! Our tool provides the exact text format required by online recruitment portals (e.g., "26 Years, 4 Months, 12 Days as of 01/08/2026"). You can copy and paste this formatted eligibility statement directly into your application.