diff --git a/CALCULATOR b/CALCULATOR
new file mode 100644
index 00000000..0b94102f
--- /dev/null
+++ b/CALCULATOR
@@ -0,0 +1,88 @@
+<html> 
+   <head> 
+      <script> 
+         //function that display value 
+         function dis(val) 
+         { 
+             document.getElementById("result").value+=val 
+         } 
+           
+         //function that evaluates the digit and return result 
+         function solve() 
+         { 
+             let x = document.getElementById("result").value 
+             let y = eval(x) 
+             document.getElementById("result").value = y 
+         } 
+           
+         //function that clear the display 
+         function clr() 
+         { 
+             document.getElementById("result").value = "" 
+         } 
+      </script> 
+      <!-- for styling -->
+      <style> 
+         .title{ 
+         margin-bottom: 10px; 
+         text-align:center; 
+         width: 210px; 
+         color:green; 
+         border: solid black 2px; 
+         } 
+  
+         input[type="button"] 
+         { 
+         background-color:green; 
+         color: black; 
+         border: solid black 2px; 
+         width:100% 
+         } 
+  
+         input[type="text"] 
+         { 
+         background-color:white; 
+         border: solid black 2px; 
+         width:100% 
+         } 
+      </style> 
+   </head> 
+   <!-- create table -->
+   <body> 
+      <div class = title >CALCULATOR</div> 
+      <table border="1"> 
+         <tr> 
+            <td colspan="3"><input type="text" id="result"/></td> 
+            <!-- clr() function will call clr to clear all value -->
+            <td><input type="button" value="c" onclick="clr()"/> </td> 
+         </tr> 
+         <tr> 
+            <!-- create button and assign value to each button -->
+            <!-- dis("1") will call function dis to display value -->
+            <td><input type="button" value="1" onclick="dis('1')"/> </td> 
+            <td><input type="button" value="2" onclick="dis('2')"/> </td> 
+            <td><input type="button" value="3" onclick="dis('3')"/> </td> 
+            <td><input type="button" value="/" onclick="dis('/')"/> </td> 
+         </tr> 
+         <tr> 
+            <td><input type="button" value="4" onclick="dis('4')"/> </td> 
+            <td><input type="button" value="5" onclick="dis('5')"/> </td> 
+            <td><input type="button" value="6" onclick="dis('6')"/> </td> 
+            <td><input type="button" value="-" onclick="dis('-')"/> </td> 
+         </tr> 
+         <tr> 
+            <td><input type="button" value="7" onclick="dis('7')"/> </td> 
+            <td><input type="button" value="8" onclick="dis('8')"/> </td> 
+            <td><input type="button" value="9" onclick="dis('9')"/> </td> 
+            <td><input type="button" value="+" onclick="dis('+')"/> </td> 
+         </tr> 
+         <tr> 
+            <td><input type="button" value="." onclick="dis('.')"/> </td> 
+            <td><input type="button" value="0" onclick="dis('0')"/> </td> 
+            <!-- solve function call function solve to evaluate value -->
+            <td><input type="button" value="=" onclick="solve()"/> </td> 
+            <td><input type="button" value="*" onclick="dis('*')"/> </td> 
+         </tr> 
+      </table> 
+   </body> 
+</html>    
