diff --git a/flask_app.py b/flask_app.py
index 8897fa2..b37700b 100644
--- a/flask_app.py
+++ b/flask_app.py
@@ -1,16 +1,17 @@
+# Import Flask class
 from flask import Flask, render_template, request
-
 from helper import perform_calculation, convert_to_float
+from helper_circle import circle_perform
 
+# Create Flask object
 app = Flask(__name__)  # create the instance of the flask class
 
-
 @app.route('/')
 @app.route('/home')
 def home():
     return render_template('home.html')
 
-
+#Creating home route and returning home HTML
 @app.route('/calculate', methods=['GET', 'POST'])  # associating the GET and POST method with this route
 def calculate():
     if request.method == 'POST':
@@ -38,3 +39,28 @@ def calculate():
             return render_template('calculator.html', printed_result="You cannot divide by zero")
 
     return render_template('calculator.html')
+
+#Creating circle route and returning circle HTML
+@app.route('/circle', methods=['GET', 'POST'])  # associating the GET and POST method with this route
+def circle():
+    printed_result = None
+
+    if request.method == 'POST':
+        radius = float(request.form['radius'])
+        operation = request.form['operation']
+
+        # Create an instance
+        helper_circle = circle_perform(radius)
+
+        if radius < 0:
+            printed_result = 'Radius must not be defined as negative.'
+        elif operation not in ['Perimeter', 'Area']:
+            printed_result = 'Operation must be one of "Perimeter", or "Area".'
+        elif operation == 'Perimeter':
+            result = helper_circle.perimeter()
+            printed_result = f"Perimeter: {result}"
+        else:
+            result = helper_circle.area()
+            printed_result = f"Area: {result}"
+
+    return render_template('circle.html', printed_result=printed_result)
\ No newline at end of file
diff --git a/helper_circle.py b/helper_circle.py
new file mode 100644
index 0000000..774d496
--- /dev/null
+++ b/helper_circle.py
@@ -0,0 +1,9 @@
+# create helper_circle functions for circle calculations
+import math
+class circle_perform:
+    def __init__(self, radius: float):
+        self.radius=radius
+    def perimeter(self) -> float:
+        return  2*math.pi*self.radius
+    def area(self) -> float:
+        return math.pi*(self.radius**2)
\ No newline at end of file
diff --git a/templates/circle.html b/templates/circle.html
new file mode 100644
index 0000000..ae98756
--- /dev/null
+++ b/templates/circle.html
@@ -0,0 +1,20 @@
+{% extends 'layout.html' %}
+{% block content %}
+	<h1>Perimeter and Area Calculator</h1>
+    <form method="post" action="circle">
+        <input type="text" name="radius" placeholder="Enter the radius" required="required" />
+
+        <label for="operation">Operation</label>
+        <select id="operation" name="operation">
+            <option value="Perimeter">Perimeter</option>
+            <option value="Area">Area</option>
+        </select>
+
+        <button type="submit">Calculate</button>
+    </form>
+
+   <br>
+
+   {{ printed_result }}
+
+{% endblock %}
\ No newline at end of file
diff --git a/templates/layout.html b/templates/layout.html
index 8de2e62..210c984 100644
--- a/templates/layout.html
+++ b/templates/layout.html
@@ -13,6 +13,9 @@ <h1 class="logo"><a href="{{ url_for('home') }}">Home</a></h1>
           <ul class="menu">
             <li><a href="{{ url_for('calculate') }}">General Calculator</a></li>
           </ul>
+          <ul class="menu">
+            <li><a href="{{ url_for('circle') }}">Circle Calculator</a></li>
+          </ul>
         </nav></strong>
       </div>
     </header>
diff --git a/test.py b/test.py
new file mode 100644
index 0000000..f527ebd
--- /dev/null
+++ b/test.py
@@ -0,0 +1,20 @@
+from helper_circle import circle_perform
+import math
+
+def perimeter_test():
+    #Create an instance radius=1
+    helper_circle = circle_perform(1)
+
+    perimeter = helper_circle.perimeter()
+    assert round(perimeter, 8) == round(2 * math.pi, 8)
+
+def area_test():
+    #Create an instance radius=1
+    helper_circle = circle_perform(1)
+
+    area = helper_circle.area
+    assert round(area, 8) == round(math.pi, 8)
+
+
+
+