Calculate Your Exact Age (বয়স হিসাব করুন)
🎯 Your Exact Age (আপনার সঠিক বয়স)
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exact age from date of birth
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Years
বছর
0
Months
মাস
0
Days
দিন
Total Days / মোট দিন
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Total Months / মোট মাস
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Total Weeks / মোট সপ্তাহ
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Total Hours / মোট ঘণ্টা
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🎂 Your next birthday countdown will appear here.

How This Age Calculator Works বয়স ক্যালকুলেটর কিভাবে কাজ করে?

Our age calculator Bangladesh computes your exact age from your date of birth to today — or any date you choose — using the Gregorian calendar officially used in Bangladesh for NID, passport, and all government documents.

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Enter your date of birth — আপনার জন্ম তারিখ লিখুন (day, month, year).
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Choose a target date (optional) — কোন নির্দিষ্ট তারিখে বয়স জানতে চাইলে সেটি দিন। Default is today's date.
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Click Calculate — সাথে সাথে সঠিক বয়স দেখুন: years, months, days, total days, weeks, hours, and next birthday countdown.
বছর, মাস ও দিনে বয়স: The calculator shows your complete age breakdown — for example: 25 years, 4 months, 12 days — not just the completed years.

Age Calculation Logic

Age is calculated by subtracting the birth date from the target date with calendar-precise arithmetic. If the current month/day hasn't reached the birth month/day yet in the current year, one year is subtracted and the remainder is expressed in months and days using actual month lengths.

লিপ ইয়ার (Leap Year) Handling

If you were born on 29 February, our calculator correctly identifies leap years. In non-leap years, your birthday anniversary is counted on 28 February — consistent with official Bangladeshi age reckoning for NID and passport applications.

Example Age Calculation উদাহরণ সহ বয়স হিসাব

Let's walk through a real example to understand how age from date of birth is calculated:

📅 Example Calculation

Date of Birth (জন্ম তারিখ)15 March 1995
Today's Date (আজকের তারিখ)1 April 2026
Completed Years (পূর্ণ বছর)31 years
Remaining Months (বাকি মাস)0 months
Remaining Days (বাকি দিন)17 days
Total Days Alive~11,340+ days
✅ Final Result31 years, 0 months, 17 days

Step-by-step: March 15, 1995 → March 15, 2026 = exactly 31 years. Then March 15 → April 1 = 17 more days. Final answer: 31 years, 0 months, 17 days.

Age Calculation Methodology বয়স গণনার পদ্ধতি ও বিশেষ কেস

Our calculator uses precise calendar mathematics — not simple subtraction — to handle every edge case correctly. Here's how each scenario is handled:

Scenario / পরিস্থিতি How We Handle It / কিভাবে সমাধান করা হয়
Leap Year Birthday (29 Feb) In non-leap years, birthday counted as Feb 28; correctly resolved
Future Date of Birth Error displayed: "Date of birth cannot be in the future"
Born Today Age shown as 0 years, 0 months, 0 days — "Just born today!"
Month Crossover (days go negative) Days borrowed from prior month using actual month lengths (28–31)
Invalid / Empty Date Browser validation + JavaScript error message
Custom Target Date Age calculated as of any past or future target date chosen by user

বাংলাদেশে বয়সের হিসাব

বাংলাদেশে জাতীয় পরিচয়পত্র (NID), পাসপোর্ট, চাকরির আবেদন এবং স্কুলে ভর্তির জন্য গ্রেগরিয়ান ক্যালেন্ডার অনুযায়ী বয়স হিসাব করা হয়। এই ক্যালকুলেটর সেই একই পদ্ধতি অনুসরণ করে — সম্পূর্ণ বিনামূল্যে।

In Bangladesh, age for official documents (NID, passport, job applications, school admissions) is the number of completed years as of the relevant date, calculated using the Gregorian calendar. Our tool follows this exact methodology.

Frequently Asked Questions সচরাচর জিজ্ঞাসা (FAQ)

Enter your date of birth in the calculator above and click "Calculate Age." The tool instantly computes your exact age in years, months, and days. You can also set a specific target date to find your age on any past or future date.
After calculating, the result shows your total days alive — including all months and leap years counted correctly. For example, a 25-year-old is approximately 9,131–9,132 days old. The exact count depends on how many leap years fall in your lifetime.
জন্ম তারিখ থেকে আজকের তারিখ পর্যন্ত পূর্ণ বছর, বাকি মাস ও দিন গণনা করে বয়স বের করা হয়। লিপ ইয়ার এবং প্রতি মাসের সঠিক দিন সংখ্যা (২৮/২৯/৩০/৩১) বিবেচনা করে সঠিক ফলাফল দেওয়া হয়।
Bangladesh uses the Gregorian calendar for all official age calculations. Age is the number of completed years as of the relevant application date. Our calculator follows this exact method — making it suitable for NID verification, passport applications, job applications, and school admissions.
If your birthday is February 29, our calculator handles this correctly. In non-leap years, your birthday is counted as February 28 for age calculation purposes — consistent with standard practice in Bangladesh and internationally.
Yes! Use the "Calculate Age On" field to enter any date — past or future. For example, find out how old you were on Bangladesh Independence Day (26 March 1971), or how old you'll be on your next big milestone birthday.
Yes. Our calculator uses precise calendar arithmetic — accounting for leap years, variable month lengths (28–31 days), and all edge cases. It has been verified against hundreds of test cases and produces results identical to official Bangladeshi age calculation methods.
বয়স হিসাব করার পরে ফলাফলে স্বয়ংক্রিয়ভাবে পরবর্তী জন্মদিনের দিন সংখ্যা দেখা যাবে। After calculating, the birthday countdown chip shows exactly how many days until your next birthday.
Completed years (পূর্ণ বছর) is just the whole number — e.g., 30. Exact age includes years, months, and days — e.g., 30 years, 5 months, 21 days. For school admissions and official documents in Bangladesh, completed years as of the cutoff date is typically used.
Yes. This age calculator is fully mobile-optimized. It works perfectly on all Android and iPhone browsers including Chrome, Firefox, Samsung Internet, and Safari — with no app download required.