Nepali Date of Birth & Age Calculator
Enter your date of birth in Bikram Sambat (BS) or English (AD) and get your exact current age in years, months, and days, plus a countdown to your next birthday.
About the Nepali Date of Birth & Age Calculator
Calculating age from a Bikram Sambat birth date without converting to the Gregorian calendar first is genuinely error-prone by hand — BS months don't line up with AD months, and BS years don't have a fixed length the way AD years mostly do. This tool sidesteps the problem entirely: enter a birth date in either calendar, and it converts internally before doing the actual age arithmetic, so the result is exact regardless of which calendar the birth date was originally recorded in.
Why "years old" isn't just subtraction
Simply subtracting birth year from current year gives the wrong answer whenever the birthday hasn't occurred yet this year — someone born in Magh (a later BS month) isn't a year older in Baisakh (an earlier BS month) of the current year, even though the year-number difference suggests otherwise. This calculator checks whether the birthday has actually passed for the current year before finalizing the years/months/days figure, the same way a proper age calculation should.
What you get back
Exact age in years, months, and days; the birth date shown in both BS and AD for cross-reference; total days lived; and a countdown to the next birthday — useful for eligibility checks, official forms, or just curiosity.
Frequently Asked Questions
Can I enter my date of birth in Bikram Sambat?
Yes — switch the “Enter birth date as” selector to Nepali (Bikram Sambat) and pick your BS birth date directly; the tool converts it internally to calculate your exact age.
How is age calculated?
By comparing your exact date of birth to today's date, accounting for whether your birthday has occurred yet this year — the same method used by official age calculations, not just a simple year subtraction.
Does it show my birthday in both calendars?
Yes — the result shows your date of birth in both Bikram Sambat and English (AD), plus your total days lived and a countdown to your next birthday.