AD to BS Converter
Convert English Gregorian (AD) dates to Bikram Sambat (BS) Nepali dates with day-of-week, Nepali month name, and tithi/month length details.
Open AD to BS Converter →
BS to AD Converter
Convert any Bikram Sambat (BS) Nepali date between 2000 BS and 2090 BS into its exact Gregorian (AD) English date using verified Nepali monthly day counts.
Select Bikram Sambat (BS) Date
Switch to AD → BSConverted English (AD) Date
Gregorian (AD) Date
April 13, 2024 AD
ISO Format: 2024-04-13
Bikram Sambat Input
Baishakh 1, 2081 BS
Day of the Week
Saturday (शनिबार)
Baishakh 2081 BS has 31 days
How Verified Bikram Sambat (BS) to AD Conversion Works
Unlike the Gregorian calendar where month lengths are fixed (except February in leap years), the Bikram Sambat (विक्रम संवत्) calendar is a solar sidereal calendar where any month from Baishakh to Chaitra can contain 29, 30, 31, or 32 days depending on the exact time the sun enters each zodiac sign (Sankranti).
Reference Anchor: 2000 Baishakh 01 BS ≡ April 14, 1943 AD (Wednesday)
Conversion Method: Count exact elapsed days (ΔD) from 2000-01-01 BS using verified annual month-length arrays, then add ΔD days to 1943-04-14 UTC.
Conversion Method: Count exact elapsed days (ΔD) from 2000-01-01 BS using verified annual month-length arrays, then add ΔD days to 1943-04-14 UTC.
Example: Convert Nepali New Year Baishakh 1, 2081 BS to English Date (AD):
Input: 2081-01-01 BS → Output: April 13, 2024 AD (Saturday / शनिबार)
Frequently Asked Questions
The Bikram Sambat calendar begins in mid-April (Baishakh 1 falls on April 13 or April 14 AD) and its months range from 29 to 32 days based on solar transit. Simply subtracting 56 years and 8 months can be off by 1 to 3 days depending on leap years and month lengths.
Our verified calendar dataset supports all Bikram Sambat dates from 2000 Baishakh 1 BS (April 14, 1943 AD) through 2090 Chaitra 30 BS (April 13, 2034 AD).
Yes. Students and applicants frequently use this tool to convert their BS date of birth on SEE transcripts or Nepali Citizenship certificates into the exact AD date required for passports and international admissions.
Use our companion AD to BS Converter, which shares the exact same verified calendar lookup dataset.
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