diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000..66544f0
Binary files /dev/null and b/.DS_Store differ
diff --git a/circle.py b/circle.py
new file mode 100644
index 0000000..b517c00
--- /dev/null
+++ b/circle.py
@@ -0,0 +1,13 @@
+import math 
+
+class Circle: 
+    def __init__(self,radius):
+        self.radius = radius 
+    
+    def perimeter(self):
+        return 2 * math.pi * self.radius
+    
+    def area(self):
+        return math.pi * (self.radius ** 2)
+
+
diff --git a/flask_app.py b/flask_app.py
index 8897fa2..61c3cad 100644
--- a/flask_app.py
+++ b/flask_app.py
@@ -2,6 +2,8 @@
 
 from helper import perform_calculation, convert_to_float
 
+from circle import Circle
+
 app = Flask(__name__)  # create the instance of the flask class
 
 
@@ -38,3 +40,14 @@ def calculate():
             return render_template('calculator.html', printed_result="You cannot divide by zero")
 
     return render_template('calculator.html')
+
+
+@app.route('/circle', methods=['GET', 'POST'])
+def calculate_circle():
+    if request.method == 'POST':
+        radius = float(request.form['radius'])
+        circle = Circle(radius)
+        perimeter = circle.perimeter()
+        area = circle.area()
+        return render_template('radius.html', perimeter=perimeter, area=area)
+    return render_template('radius.html')
diff --git a/templates/layout.html b/templates/layout.html
index 8de2e62..7986008 100644
--- a/templates/layout.html
+++ b/templates/layout.html
@@ -12,6 +12,7 @@ <h1 class="logo"><a href="{{ url_for('home') }}">Home</a></h1>
         <strong><nav>
           <ul class="menu">
             <li><a href="{{ url_for('calculate') }}">General Calculator</a></li>
+            <li><a href="{{ url_for('calculate_circle') }}">Circle Calculator</a></li>
           </ul>
         </nav></strong>
       </div>
diff --git a/templates/radius.html b/templates/radius.html
new file mode 100644
index 0000000..3ea2a49
--- /dev/null
+++ b/templates/radius.html
@@ -0,0 +1,19 @@
+{% extends 'layout.html' %}
+{% block content %}
+    <div class="calculator-form">
+        <h1>Circle Calculator</h1>
+        <form action="/circle" method="post" class="calc-form">
+            <div class="form-group">
+                <label for="radius">Radius:</label>
+                <input type="number" id="radius" name="radius" required class="form-control">
+            </div>
+            <button type="submit" class="btn-calculate">Calculate</button>
+        </form>
+        {% if perimeter and area %}
+            <div class="result">
+                <p>Perimeter: {{ perimeter }}</p>
+                <p>Area: {{ area }}</p>
+            </div>
+        {% endif %}
+    </div>
+{% endblock %}
diff --git a/test_circle.py b/test_circle.py
new file mode 100644
index 0000000..b2bf612
--- /dev/null
+++ b/test_circle.py
@@ -0,0 +1,22 @@
+
+from circle import Circle
+import math
+
+def test_circle():
+    # Test case for perimeter
+    radius = 5
+    circle = Circle(radius)
+
+    expected_perimeter = 2 * math.pi * radius
+    assert circle.perimeter() == expected_perimeter, f"Expected perimeter: {expected_perimeter}, but got: {circle.perimeter()}"
+
+    # Test case for area
+    expected_area = math.pi * (radius ** 2)
+    assert circle.area() == expected_area, f"Expected area: {expected_area}, but got: {circle.area()}"
+
+
+    print("All tests passed!")
+
+
+if __name__ == "__main__":
+    test_circle()
\ No newline at end of file