Enter your date of birth in BS or AD and get your exact age in years, months, and days. The Nepali Age Calculator works with both calendar systems. Select your input mode, pick your date, and see your age breakdown instantly.
What Is a Nepali Age Calculator?
A Nepali age calculator determines your age using the Bikram Sambat (BS) calendar. This is the official calendar of Nepal. Government documents, citizenship certificates, school records, and legal forms in Nepal use BS dates. International age calculators work with the Gregorian (AD) calendar only. They cannot calculate age correctly from a Nepali birth date because BS months have different lengths that change from year to year.
This calculator handles both systems. You can enter your date of birth in BS or AD. It converts automatically and shows your age in years, months, and days. The result includes total months, weeks, days, and hours lived, plus how long until your next birthday.
People use this tool for:
- Citizenship applications that require exact BS age
- SEE and NEB exam forms
- Lok Sewa Aayog job application age verification
- Passport and visa applications
- School admission age checks
- Bratabandha and marriage age verification
BS vs AD: What Is the Difference?
Bikram Sambat (BS) is the official calendar of Nepal. It is approximately 56 years and 8 months ahead of the Gregorian (AD) calendar. The BS year begins in mid-April, not January. This means the year offset shifts depending on the month. Before Baishakh 1 (mid-April), the BS year is 56 years ahead of AD. After Baishakh 1, it becomes 57 years ahead.
| Factor | BS (Bikram Sambat) | AD (Gregorian) |
|---|---|---|
| Used in Nepal for | Government documents, citizenship, official forms | International contexts, some modern applications |
| Year offset | 56-57 years ahead of AD | Baseline calendar |
| New Year starts | Baishakh 1 (mid-April) | January 1 |
| Month lengths | 29 to 32 days, vary by year | 28 to 31 days, mostly fixed |
| Leap year rules | Different from Gregorian | Standard February 29 rule |
| Age calculation | Required for Nepali official forms | Used for international purposes |
Your age in years stays the same across both calendars. The difference is in the calendar year numbers and the month-day alignment. The Nepali date of birth printed on your citizenship certificate is your official age reference for government purposes in Nepal.
How to Calculate Your Age in Nepali (BS)
- Choose your input mode. Select BS Date if you know your Nepali birth date. Select AD Date if you only know your English birth date.
- Select your date of birth. Pick the year, month, and day from the dropdown menus. The day options adjust automatically based on the selected month and year.
- Click Calculate Age. Your age appears in the result panel. It shows years, months, and days in large text, plus total months, weeks, days, and hours.
- Check your next birthday. The tool shows how many months and days remain until your next birthday.
No need to convert dates manually. The calculator handles BS-to-AD conversion in the background using the BS month lengths built into the tool.
Age Requirements for Government Forms in Nepal
Different government processes in Nepal have different minimum age requirements. Ages are calculated in the BS calendar using your date of birth as recorded on your citizenship certificate.
| Purpose | Minimum Age (BS) | Notes |
|---|---|---|
| Citizenship certificate | 16 completed years | Verified against BS date of birth at District Administration Office |
| Voting (voter list) | 18 completed years | Must turn 18 by the voter list cutoff date (Falgun 20) to vote. Voter list registration itself opens at 16. |
| Marriage registration | 20 years (male and female) | Based on National Civil Code 2074 |
| Driving license | 16 years (motorcycle), 18 years (car) | Department of Transport Management rules |
| Lok Sewa (Kharidar, Nayab Subba) | 18 to 35 completed years | Running age may apply in some vacancies |
| Lok Sewa (Section Officer) | 21 completed years minimum | Maximum varies by post, typically 35-45 |
| SEE exam registration | 14 completed years (current rule) | Must turn 14 by the end of Chaitra of the exam year. NEB sets the cutoff annually. |
| NEB Class 12 registration | As specified by NEB | Checked against BS date of birth |
Government forms require your age in completed BS years. Some Lok Sewa vacancies use running age. Check the specific advertisement or application form for the exact age requirement before applying.
Running Age vs Completed Age in Nepali
Completed age (पूरा उमेर) is the number of full years you have lived since your birth. You gain a year on your birthday each year. If you were born on Bhadra 15, 2055 BS and today is Bhadra 10, 2083 BS, your completed age is 27 years because your birthday this year has not happened yet.
Running age (चल्दो उमेर) is the year of life you are currently in. It is always one number higher than your completed age. In the same example, your running age would be 28 years because you are living through your 28th year.
Most government forms in Nepal ask for completed age. Lok Sewa Aayog vacancies sometimes specify requirements in running age. An advertisement might say "minimum running age 21, maximum running age 35." If your completed age is 34, your running age is 35, which means you may still be eligible for a 35-maximum post. Check each vacancy notice carefully to know which age format they use.
Use this Nepali Age Calculator alongside other SajiloX Nepali utilities. Convert dates between BS and AD with the Nepali Date Converter. Type in Nepali using your English keyboard with the Nepali Unicode Typing tool. Calculate the age difference between two people with the Age Gap Calculator. All tools are free.
Last verified: August 2026. Calendar calculations use the built-in BS calendar data for the range 2000 BS to 2099 BS.