How to use it
- Choose whether you know your date of birth in BS or AD.
- Enter the day, pick the month and type the year.
- Your age appears in BS and in AD, with your date of birth in both calendars and your next birthday.
To find your age on a particular day, such as the closing date of a Lok Sewa or job application, open “Age on another date” and enter that date.
How Bikram Sambat dates work
Bikram Sambat (BS, बिक्रम सम्बत्) is the official calendar of Nepal. Its year begins on 1 Baisakh, in mid-April, and runs roughly 56 years and 8 months ahead of AD. Unlike AD months, BS months don’t have fixed lengths: each one has 29 to 32 days, and the pattern changes from year to year. That is why you can’t convert a BS date by adding or subtracting a fixed number of days.
This calculator uses the published month lengths for 2000 to 2090 BS. Ages in BS are counted the same way as in AD: whole years, then whole months, then the days left over.
Your data stays on your device
Everything is calculated in your browser. Your date of birth is never sent to a server.
COMMON QUESTIONS
Frequently asked questions
Clear answers about this calculator and how to understand its results.
How do I calculate my age in the Nepali calendar?
Choose BS, pick your birth month, and enter the day and year. Your age appears in Bikram Sambat years, months and days, with your age in AD underneath.
How do I convert my BS date of birth to AD?
Enter your date of birth in BS. The matching AD date appears in the result under “Date of birth (AD)”. It also works the other way: choose AD to find your BS date of birth.
Why can my age in BS differ from my age in AD?
Both count the same number of days, but BS months are 29 to 32 days long and the BS year starts in mid-April. Around your birthday, your BS and AD ages can be a few days apart, so one may have gone up by a year before the other.
Is BS always 56 years and 8 months ahead of AD?
Roughly, but not exactly. BS month lengths change from year to year, so the gap varies by a few days. Use a converter for exact dates.
Which dates are supported?
From 1 Baisakh 2000 BS (14 April 1943) to the end of 2090 BS (April 2034).
Is my date of birth saved?
No. The calculation runs in your browser and nothing you enter is sent to a server.