Date Converter (AD ↔ BS)
Convert English (AD / Gregorian) dates to Bikram Sambat (BS) and BS back to AD for Nepal forms, festivals and office files.
Estimates only — not professional financial, medical, legal or engineering advice. Read full disclaimer.
Result
Fill in the form and click Calculate to see your result here.
How it's calculated
Conversion uses the encoded AD↔BS mapping for the supported year range. Direction AD→BS or BS→AD is selected in the form.
Example
Example: Date Converter (AD ↔ BS)
Inputs
- Direction: ad_to_bs
- Ad Date: 2026-07-23
- Bs Date: 2083-04-07
Outputs
- Bs Date: 2083-04-07
- Bs Readable: 7 Shrawan 2083
- Bs Month Name: Shrawan
- Weekday: Thursday
This example uses typical sample values. Adjust the inputs above to see how the results change for your own numbers.
About this calculator
Nepal government, banks, and schools hop between AD and Bikram Sambat. This converter handles both directions in the supported range (AD 1944–2033 / BS 2000–2089 as implemented). Use it for a passport form that wants BS, or a hospital sticker printed in AD.
BS months are not Gregorian months with Nepali names. “1st of a Nepali month” is not 1 January. Always confirm the converted civil date for court or land filings with an official almanac if the day sits near a month boundary.
This is a date translation, not an age calculator and not a Dashain public-holiday list.