momina raheel (Moona)

Posted on Oct 8

Day 26 of My 90 Days Python Series – Age Calculator 🧮

#python #beginners #programming #opensource

🚀 Day 26 of My 90 Days Python Series – Age Calculator 🧮

Have you ever caught yourself mentally calculating your exact age and losing track halfway through? 😅

Well, not anymore.

Today’s project is a simple yet smart Python Age Calculator that instantly tells you your age in years and months — no more guessing or counting on fingers!

This is part of my 90 Days Python Series, where I build small, practical projects every day to sharpen my skills. 🐍✨

🧠 Why I Built This Project

Let’s be honest — calculating age isn’t difficult, but remembering the math can be annoying.

And as a Python learner, I wanted a project that:

🧮 Uses real-world logic
🧠 Strengthens understanding of date & time handling
🔁 Includes loops and conditions
✅ Is beginner-friendly and easy to build

The Age Calculator ticks all those boxes!

✨ What This Age Calculator Can Do

✅ Takes your birthdate as input (in YYYY-MM-DD format)

✅ Calculates your exact age in years and months

✅ Handles invalid date inputs gracefully

✅ Keeps running until you choose to exit

✅ Simple terminal interface — no extra installations needed!

🧑‍💻 Example Output


✨ Welcome to the Age Calculator ✨

Enter your birthdate (YYYY-MM-DD): 2002-08-14

🎉 You are 23 years and 1 month old!

Do you want to calculate another age? (yes/no): yes

Enter your birthdate (YYYY-MM-DD): 1995-02-01

🎉 You are 30 years and 8 months old!

Do you want to calculate another age? (yes/no): no

Thanks for using the Age Calculator! 🧡

⚙️ How It Works — Step by Step

Import the datetime module
- Python’s datetime makes it super easy to work with dates.
Ask for user input in the format YYYY-MM-DD.
Convert the string into a date object using datetime.strptime.
Compare the entered date with the current date to find the difference.
Extract years and months from the difference.
Use a while loop so the program keeps running until the user says “no.”
Use try / except to handle invalid formats gracefully.

🧩 Code Overview (Beginner Friendly)

Here’s the core logic of the Age Calculator 👇

`python
from datetime import datetime

while True:
try:
birth_date_str = input("Enter your birthdate (YYYY-MM-DD): ")
birth_date = datetime.strptime(birth_date_str, "%Y-%m-%d")
today = datetime.today()

    # Calculate year and month difference
    years = today.year - birth_date.year
    months = today.month - birth_date.month

    # Adjust if the current month is before the birth month
    if months < 0:
        years -= 1
        months += 12

    print(f"\n🎉 You are {years} years and {months} months old!\n")

except ValueError:
    print("❌ Invalid format. Please use YYYY-MM-DD.\n")
    continue

again = input("Do you want to calculate another age? (yes/no): ").lower()
if again != "yes":
    print("\nThanks for using the Age Calculator! 🧡")
    break

🧠 Python Concepts You’ll Learn

📅 datetime module
🧭 String parsing with strptime
🧮 Date calculations
🌀 while loops for continuous execution
🧱 try / except for error handling
🧠 Conditional logic for month adjustment

This is a perfect mini project to strengthen your grasp of working with real-world data in Python.

📂 GitHub Repository

You can explore the complete project here:
👉 https://github.com/shadowMomina/day-26-age-calculator.git

Feel free to ⭐ the repo if you find it helpful!

🌟 Why Mini Projects Like This Matter

Learning Python isn’t just about reading tutorials — it’s about building something every day.
With each project, I get more confident in handling user input, applying logic, and organizing code.

Small tools like this Age Calculator are:

🔸 Easy to build
🔸 Great for beginners
🔸 Fun to share and showcase
🔸 Useful in real life, too!

🪄 Final Thoughts

This wraps up Day 26 of my 90 Days Python Series.
If you’re a beginner, I highly recommend starting your own daily project streak. You’ll be amazed at how much progress you make in just a few weeks. 💪✨

I’ll see you tomorrow with Day 27’s project.
Hint: It’s going to be another practical and fun one! 🚀

👉 Follow my journey for more daily Python projects.

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