diff --git a/BMI calculator/BMI.PY b/BMI calculator/BMI.PY
new file mode 100644
index 00000000..a6349d12
--- /dev/null
+++ b/BMI calculator/BMI.PY	
@@ -0,0 +1,39 @@
+def calculate_bmi(weight_kg, height_cm):
+    """
+    Calculate BMI given weight in kilograms and height in centimeters.
+    BMI formula: weight (kg) / (height (m) ** 2)
+    """
+    height_m = height_cm / 100  # convert cm to meters
+    bmi = weight_kg / (height_m ** 2)
+    return round(bmi, 2)  # rounded to 2 decimal places
+
+def categorize_bmi(bmi):
+    """
+    Categorize BMI according to WHO standards.
+    """
+    if bmi < 18.5:
+        return "Underweight"
+    elif 18.5 <= bmi < 24.9:
+        return "Normal weight"
+    elif 25 <= bmi < 29.9:
+        return "Overweight"
+    else:
+        return "Obese"
+
+def main():
+    # User input
+    try:
+        weight = float(input("Enter your weight in kg: "))
+        height = float(input("Enter your height in cm: "))
+
+        bmi = calculate_bmi(weight, height)
+        category = categorize_bmi(bmi)
+
+        print(f"
+Your BMI is: {bmi}")
+        print(f"Category: {category}")
+    except ValueError:
+        print("Invalid input! Please enter numeric values for weight and height.")
+
+if __name__ == "__main__":
+    main()