BS to AD Converter Nepal | Bikram Sambat Date Converter

Every year, thousands of people in Nepal need to convert a date between the Bikram Sambat (BS) calendar and the English (AD) calendar — for citizenship applications, passport forms, bank loan documents, school admissions, and job applications. Manually converting BS to AD or AD to BS is confusing because Nepali months don’t have a fixed number of days. This guide gives you a free, accurate, both-ways BS to AD Converter Nepal tool, plus everything you need to understand how the two calendars work.

The Bikram Sambat calendar and the Gregorian (AD) calendar side by side.

Free BS to AD & AD to BS Converter (Both Ways)

Use the tool below to convert any date instantly. Switch between BS → AD and AD → BS using the tabs, select the date, and tap Convert. The tool runs entirely in your browser — no app download, no waiting, and no data is sent anywhere.

What Is the Bikram Sambat (BS) Calendar?

The Bikram Sambat calendar, also called the Vikram Samvat calendar, is the official calendar of Nepal. It is a lunar-solar calendar that is roughly 56 years, 8 months ahead of the Gregorian calendar. The Nepali New Year begins in mid-April, on the first day of Baisakh, and the calendar year is divided into twelve months — Baisakh, Jestha, Asar, Shrawan, Bhadra, Aswin, Kartik, Mangsir, Poush, Magh, Falgun, and Chaitra. Unlike the Gregorian calendar, the number of days in each Nepali month is not fixed; it can range from 29 to 32 days depending on the year, which is exactly why an automated converter is so useful.

What Is the AD (Gregorian) Calendar?

AD, short for Anno Domini, refers to the Gregorian calendar — the internationally recognized solar calendar used for global business, banking, travel, and most digital systems. It has twelve fixed months of 28 to 31 days, and the year begins on 1 January. In Nepal, the AD calendar is commonly used alongside BS for international transactions, online forms, and communication with foreign institutions.

Key differences between the Bikram Sambat and Gregorian calendars.

How to Use This BS-AD Converter (Step-by-Step)

The converter above is designed to be simple enough for anyone to use on the first try. Here is exactly what happens at each step:

A visual walkthrough of the four simple steps.

1. Choose Your Conversion Direction

Tap the BS to AD tab if you have a Nepali date and want the English equivalent, or tap AD to BS if you have an English date and want the Nepali equivalent.

2. Select Year, Month, and Day

The dropdowns automatically adjust to show the correct number of days for the month and year you select, so you can never pick an invalid date.

3. Tap Convert

The calculation happens instantly on your device using a verified date-mapping table — there is no delay and no page reload.

4. Read Your Converted Date

Your result appears in both a clean numeric format and a fully written-out format, along with the day of the week, so you can copy it directly into any form.

Why This BS to AD Converter Is Accurate

Nepali calendar conversion is not a simple fixed-offset calculation. Because Bikram Sambat months vary in length from year to year, an accurate converter must rely on a verified, year-by-year calendar reference rather than an approximate formula. This tool uses a complete month-length data table covering Bikram Sambat years 2000 to 2090 (equivalent to roughly 14 April 1943 to 13 April 2034 AD), so every conversion in that range is precise to the exact day — including the correct day of the week.

Common Uses of BS to AD Conversion in Nepal

Converting between BS and AD comes up far more often than most people expect. Here are some of the most common situations where this tool can save you time:

• Bank and loan applications — entering your date of birth or document issue date in the correct calendar format.
• Passport and citizenship documents — matching birth dates across BS-based and AD-based paperwork.
• School and university admissions — converting academic session dates and birth certificates.
• Visa and immigration forms — foreign embassies typically require AD dates only.
• Insurance policies and EMI schedules — aligning policy start dates and due dates across both calendars.
• Job applications and employment contracts — converting joining dates and experience certificates.

Frequently Asked Questions

What is today’s date in the Bikram Sambat calendar?

You can find today’s exact BS date by opening the AD to BS tab above, selecting today’s English date, and tapping Convert. The current year in Nepal falls around 2082–2083 BS, depending on the month.

How many days ahead is the BS calendar compared to AD?

The Bikram Sambat calendar runs approximately 56 years and 8 months ahead of the Gregorian (AD) calendar, though the exact gap shifts slightly through the year because the Nepali New Year starts in mid-April rather than in January.

Is this BS-AD converter free to use?

Yes. This converter is completely free, works directly in your browser, and does not require any signup, download, or app installation.

Can I convert old dates, such as a birth date from the 1990s?

Yes. This tool accurately covers Bikram Sambat years 2000 to 2090, which spans English dates from 1943 to 2034 — comfortably covering birth dates, historical documents, and most official paperwork.

Why do Nepali months have a different number of days each year?

The Bikram Sambat calendar is a lunar-solar calendar, and its month lengths are adjusted periodically to stay aligned with the solar year. This is why Baisakh, for example, can be 30 or 31 days depending on the specific year, unlike the fixed pattern used in the Gregorian calendar.

Whether you’re filling out a bank form, applying for a loan, or simply double-checking a birth certificate, this BS to AD and AD to BS converter is built to make Nepali date conversion fast, accurate, and hassle-free. Bookmark this page so you always have a reliable converter on hand.