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+# 📊 BMI Calculator App
+
+Welcome to the **BMI Calculator App**! This app calculates your Body Mass Index (BMI) based on your height and weight. It also provides a detailed classification of your BMI category and includes an interactive table with a dynamic arrow (`-->`) pointing to your specific category.
+
+---
+
+## 🌟 Features
+
+✅ **User-Friendly Input Validation**:  
+   Ensures only valid numeric inputs for height and weight. Handles invalid or negative values gracefully.
+
+✅ **Unit Flexibility**:  
+   Supports both:
+   - **Centimeters/Pounds**
+   - **Meters/Kilograms**
+
+✅ **Accurate BMI Calculation**:  
+   Uses the standard BMI formula:  
+   $$
+   \text{BMI} = \frac{\text{Weight (kg)}}{\text{Height (m)}^2}
+   $$
+
+✅ **Detailed BMI Category Mapping**:  
+   Classifies your BMI into one of the following categories:
+   - Very severely underweight
+   - Severely underweight
+   - Underweight
+   - Normal (healthy weight)
+   - Overweight
+   - Moderately obese
+   - Severely obese
+   - Very severely obese
+
+✅ **Interactive BMI Table**:  
+   Displays a table of all BMI categories with a dynamic arrow (`-->`) pointing to your specific category.
+
+---
+
+## 🚀 How to Use
+
+### Step 1: Run the App
+Run the Python script in your terminal or IDE:
+```bash
+python bmi_calculator.py
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diff --git a/bmi/bmi_calc.py b/bmi/bmi_calc.py
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+class Bmi:
+    def __init__(self):
+        self.user_weight = None
+        self.user_height = None
+        self.user_choice = None
+        self.bmi_index =  None
+    
+    def input_validation(self):
+        while True:
+            try:
+                user_height, user_weight = map(float,input().split())
+                if user_height > 0 and user_weight > 0:
+                    return user_height,user_weight
+                else:
+                    print("Invalid Input: Height and weight must be positive numbers.")
+            except ValueError:
+                print("Invalid Input: Please enter numeric values for height and weight.")
+    
+    def selection(self):
+        while True:
+            try:
+                user_choice = int(input("Select the Conversion\n1:Centimeter/Pounds\n2:Meter/Kilograms -> "))
+                if 1<= user_choice <=2:
+                    return user_choice
+                else:
+                    print("Invalid Choice: Please select 1 or 2.")
+            except ValueError:
+                print("Invalid Input: Please enter a numeric value.")
+    
+    def conversion(self,choice,height,weight):
+        if choice == 1: # Convert from Centimeters/Pounds to Meters/Kilograms
+            height = height * 0.01 # Convert cm to meters
+            weight = weight * 0.4535924 # Convert pounds to kilograms
+            return height,weight
+        else:
+            return height,weight
+    
+    def bmi_calc(self,height,weight):
+        return round((weight/(height*height)),2)
+    
+    def bmi_map(self,result):
+        bmi_categories = {
+            "Very severely underweight": (0, 15),
+            "Severely underweight": (15, 16),
+            "Underweight": (16, 18.5),
+            "Normal (healthy weight)": (18.5, 25),
+            "Overweight": (25, 30),
+            "Moderately obese": (30, 35),
+            "Severely obese": (35, 40),
+            "Very severely obese": (40, float('inf'))  # 'inf' represents "Over 40"
+        }
+        for category, (lower,higher) in bmi_categories.items():
+            if lower <= result < higher:
+                return category
+        return "Invalid BMI value"
+        
+    def bmi_table(self, bmi_value):
+        # Define the BMI categories and their ranges
+        bmi_categories = [
+            ("Very severely underweight", 0, 15),
+            ("Severely underweight", 15, 16),
+            ("Underweight", 16, 18.5),
+            ("Normal (healthy weight)", 18.5, 25),
+            ("Overweight", 25, 30),
+            ("Moderately obese", 30, 35),
+            ("Severely obese", 35, 40),
+            ("Very severely obese", 40, float('inf'))
+        ]
+
+        # Create the BMI table with an arrow pointing to the user's category
+        table = []
+        for category, lower, upper in bmi_categories:
+            range_str = f"{lower} - {upper}" if upper != float('inf') else f"{lower}+"
+            arrow = "-->" if lower <= bmi_value < upper else "   "
+            table.append(f"{arrow} {category.ljust(25)} | Range: {range_str}")
+
+        # Join the table rows into a single string
+        return "\n".join(table)
+    
+    def user_detail(self):
+        print("======================================")
+        print("Welcome to the BMI App!")
+        print("======================================")
+        self.user_choice = self.selection()
+        print("Please Enter your Height and weight")
+        self.user_height, self.user_weight = self.input_validation()
+        self.user_height, self.user_weight = self.conversion(self.user_choice,self.user_height, self.user_weight)
+        result = self.bmi_calc(self.user_height, self.user_weight)
+        print("=====================================================")
+        #print(f"BMI index value -> {round(result,2)}")
+        self.bmi_index = self.bmi_map(result)
+        print(f"You fall under the category of : {self.bmi_index}")
+        print("=====================================================")
+        print("\nBMI Category Table:")
+        # Generate and display the BMI table
+        bmi_table = self.bmi_table(result)
+        print(bmi_table)
+        print("=====================================================")
+    
+    
+if __name__ == "__main__":
+    bmi_calculator = Bmi()
+    bmi_calculator.user_detail()
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