diff --git a/CONTRIBUTERS.md b/CONTRIBUTERS.md
index 50a46667..f1f8ce11 100644
--- a/CONTRIBUTERS.md
+++ b/CONTRIBUTERS.md
@@ -63,4 +63,4 @@
| Afif Islam | [afif0993](https://github.com/afif0993) | |
| Subhadip De | [@subhadipde](https://github.com/subhadipde) | 1 |
| Ujjwal Paul | [@ujjwalpaul005](https://github.com/ujjwalpaul005) | 1 |
-
+| Heet Boda | [heetboda10](https://github.com/heetboda10) | 1 |
diff --git a/JavaScript/Binary-Calculator/css/binaryCalculator.css b/JavaScript/Binary-Calculator/css/binaryCalculator.css
new file mode 100644
index 00000000..3bca5da7
--- /dev/null
+++ b/JavaScript/Binary-Calculator/css/binaryCalculator.css
@@ -0,0 +1,115 @@
+html {
+ overflow: hidden;
+ background-color: #333;
+}
+
+body {
+ width: 100%;
+ height: 100%;
+}
+
+#res {
+ background-color :lightgray;
+ border : solid;
+ height :48px;
+ font-size :20px;
+ border-radius: 20px;
+ padding: 5px 0px 0px 10px;
+}
+
+#btn0, #btn1 {
+ background-color :lightgreen;
+ color :brown;
+}
+
+#btnClr, #btnEql{
+ background-color: darkgreen;
+ color:white;
+}
+#btnSum, #btnSub, #btnMul, #btnDiv{
+ background-color :black;
+ color: red;
+}
+
+/* button{
+ width :25%;
+ height :36px;
+ font-size :18px;
+ margin : 0px;
+ float :left;
+} */
+
+#btns {
+ display: block;
+ height: auto;
+ padding-top: 10px;
+}
+
+#btns ul {
+ list-style: none;
+ display: block;
+ height: 72px;
+ margin: 0;
+ padding: 0;
+}
+
+#btns button {
+ width: 187px;
+ height: 65px;
+ font-size: 18px;
+ margin: 0;
+ float: left;
+ border-radius: 20px;
+}
+
+.container {
+ margin: auto;
+ margin-top: 10%;
+ width: 50%;
+ height: 50%;
+ border: 1px solid white;
+ padding: 10px;
+ border-radius: 4px;
+}
+
+/* Make it more accessible to smaller screens */
+@media screen and (max-width: 1000px) {
+ .container {
+ width: 70%;
+ height: 70%;
+ }
+
+ #btns button {
+ height: 100px;
+ font-size: 22px;
+ }
+
+ #btns ul {
+ height: 100px;
+ }
+
+ #res {
+ font-size: 30px;
+ }
+}
+
+@media screen and (max-width: 700px) {
+ .container {
+ width: 95%;
+ height: auto;
+ }
+
+ #btns button {
+ height: 150px;
+ font-size: 30px;
+ }
+
+ #btns ul {
+ height: 150px;
+ }
+
+ #res {
+ height: 68px;
+ font-size: 40px;
+ }
+}
diff --git a/JavaScript/Binary-Calculator/index.html b/JavaScript/Binary-Calculator/index.html
new file mode 100644
index 00000000..fbe0c14d
--- /dev/null
+++ b/JavaScript/Binary-Calculator/index.html
@@ -0,0 +1,30 @@
+
+
+
+
+
+ Binary Calculator
+
+
+
+
+
+
+
+
diff --git a/JavaScript/Binary-Calculator/js/binaryCalculator.js b/JavaScript/Binary-Calculator/js/binaryCalculator.js
new file mode 100644
index 00000000..c09efb86
--- /dev/null
+++ b/JavaScript/Binary-Calculator/js/binaryCalculator.js
@@ -0,0 +1,81 @@
+var res = document.getElementById("res");
+
+function clc(){
+ res.innerHTML = "";
+}
+
+function insert(num){
+ res.innerHTML += num;
+}
+
+function eql(){
+ let result = res.innerHTML;
+
+ operator = result.replace(/[0-9]/g, '');
+ result = result.split(new RegExp(/[+\-*/]/));
+
+ let num1 = result[0];
+ let num2 = result[1];
+
+ num1 = binaryToDecimal(num1);
+ num2 = binaryToDecimal(num2);
+
+ switch(operator){
+ case '+':
+ value = num1 + num2;
+ break;
+ case '*':
+ value = num1 * num2;
+ break;
+ case '/':
+ value = num1 / num2;
+ break;
+ case '-':
+ value = num1 - num2;
+ break;
+ default:
+ value = ''
+ break;
+ }
+ res.innerHTML = decimalToBinary(value);
+}
+
+function decimalToBinary(num){
+ let binary = [];
+ while(num > 0){
+ binary.push(num % 2);
+ num = Math.floor(num / 2);
+ }
+ return binary.reverse().join('');
+}
+
+function binaryToDecimal(binary){
+ let decimal = 0;
+ for(let i = 0; i < binary.length; i++){
+ decimal += binary[i] * Math.pow(2, binary.length - i - 1);
+ }
+ return decimal;
+}
+
+// register a keystroke listener
+document.addEventListener('keydown', (event) => {
+ if (event.which == 96) { // if numpad0
+ insert(0);
+ } else if (event.which == 97) { // if numpad1
+ insert(1);
+ } else if (event.which == 48) { // if digit0
+ insert(0);
+ } else if (event.which == 49) { // if digit1
+ insert(1);
+ } else if (event.which == 107) { // if numpadAdd
+ insert('+');
+ } else if (event.which == 109) { // if numpadSubtract
+ insert('-');
+ } else if (event.which == 111) { // if numpadDivide
+ insert('/');
+ } else if (event.which == 106) { // if numpadMultiply
+ insert('*');
+ } else if (event.which == 13) { // if numpadEnter
+ eql();
+ }
+});