Nepali Date Converter

Convert BS to AD or AD to BS. Choose a date and get a clear, copyable result.

Choose a conversion

Your converted date will appear here.

How this tool works Method, sources & assumptions

Calendar method and checking a result

Bikram Sambat months have variable lengths: conversion requires a calendar table, not adding a fixed number of years. This site uses the Nepali date conversion library. Convert a date in both directions to check that you recover the starting value; also check the original document for official applications. Dates outside the supported table may be unavailable.

For birth certificates, passport and visa forms, copy the full year, month and day and confirm which calendar the form requires. Age is a calendar difference, not a determination of legal eligibility.

One date, two calendar systems

Bikram Sambat (BS) is used in Nepal, while Gregorian dates (AD) are used internationally. This utility converts between the two using a calendar table, rather than a fixed year offset.

A quick way to check a conversion

01Choose a calendar

Select BS to AD or AD to BS.

02Enter the full date

Choose the year, month and day, then convert.

03Check and copy

Convert back to check the original date, then copy the result.

Supported dates

The BS selector covers 1978–2099. The AD selector covers April 13, 1921 through December 31, 2040. The two directions have different input limits, so not every result can be entered for a reverse check. Out-of-range dates show an explanation instead of a result.

Example conversion

2082 Baishakh 1 BS corresponds to April 14, 2025 AD. BS months have different lengths, so adding or subtracting 56 or 57 years will not reliably convert a date.

For forms and official documents

Confirm the calendar requested on the form and check the source document. This is an independent software tool, not an official certification of a date.

Can I calculate my age from a BS date?

Yes. Use the Nepali age calculator to calculate years, months and days from a BS or AD birth date.

How do I choose a date converter?

Look for a stated range, clear calendar labels and results you can check in both directions. Read the date converter comparison guide for a practical checklist.

Made to share

Add this date converter to your website

A responsive widget—not an iframe. Paste the code into a custom HTML block. It fits its container, works without an account, and keeps its styles separate from your site.