Age Calculator & Birthday Countdown
FreeCalculate your exact age using either Bikram Sambat (BS) or Gregorian (AD) dates, with your next birthday countdown
About Age Calculator & Birthday Countdown
Age Calculator & Birthday Countdown is a dual-calendar utility that computes your exact age in years, months, and days using either the Bikram Sambat (BS) or Gregorian (AD) calendar.
Nepalese official records, citizenship papers, birth certificates, and academic admissions frequently use Bikram Sambat dates, whereas passports, visas, and international forms require Gregorian (AD) dates. This tool seamlessly converts between both calendar systems and performs exact age arithmetic, total days alive statistics, and next birthday countdowns in both BS and AD.
Calculations are performed 100% on your device using client-side JavaScript. Your birth dates and personal information are never saved to any database or sent to any server.
Common Use Cases
- Checking exact age eligibility for Lok Sewa Aayog government examinations in Nepal
- Converting Bikram Sambat birth certificate dates into Gregorian AD for passport and foreign visa applications
- Calculating exact age in years, months, and days for school, +2, and university admissions
- Tracking countdown to your upcoming Nepali (BS) or Gregorian (AD) birthday
- Finding total days, weeks, and hours lived for personal milestones
How to Use Age Calculator & Birthday Countdown
- Choose your birth calendar: select 'BS (नेपाली)' or 'AD (English)'.
- If BS: select your Year (साल), Month (महिना), and Day (गते). The day picker automatically adjusts to the exact number of days (29 to 32) in the selected month.
- If AD: choose your Gregorian birth date using the calendar picker.
- Select your target date (defaults to today's date in both BS and AD).
- View your exact age breakdown, cross-referenced calendar dates, lifetime statistics, and next birthday countdown.
Real-World Examples
Birth: 2058 Bhadra 12 BS | Calculated As Of: 2083 Bhadra 12 BSExact Age: 25 Years, 0 Months, 0 Days | Next Birthday: Today! | Equivalent AD DOB: August 28, 2001 ADBirth: 2001-01-01 AD | Calculated As Of: 2083 Bhadra 18 BSExact Age: 25 Years, 8 Months, 2 Days | DOB in BS: 2057 Poush 17 BSImportant Notes & Limitations
- Supported Bikram Sambat calendar range covers 2000 BS to 2090 BS (approximately 1943 AD to 2033 AD)
- Target date must be on or after the birth date
Privacy & Data Security
Age Calculator & Birthday Countdown processes all operations 100% locally in your web browser memory. Your files, text snippets, and generated outputs are never stored, logged, or uploaded to any remote server.
Frequently Asked Questions
Yes! Simply toggle the calendar switch to 'BS', and choose your Nepali year, month, and day. The calculator accurately converts the date and computes your exact age.
The calculator converts all inputs into a canonical calendar date before computing the age difference, allowing you to enter a BS birthdate with an AD target date or vice-versa.
If you enter a BS birth date, the next birthday countdown tracks the next occurrence of your specific BS month and day (such as Bhadra 12), and displays the countdown in days along with the equivalent Gregorian date.
The date picker dynamically limits the selectable days based on the authentic astronomical Bikram Sambat calendar data for that specific year and month. If you switch months, the day is automatically clamped to the valid range.
No. All calculations are executed completely inside your web browser. No personal dates or private details are stored or uploaded.