diff --git a/Calculators/CGPA-Percentage-Calculator/README.md b/Calculators/CGPA-Percentage-Calculator/README.md
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+# CGPA ⟷ Percentage Calculator
+
+## Description :-
+
+Quickly convert your CGPA to percentage and vice versa with the CGPA ⟷ Percentage Calculator. On the basis of formula `Percentage = CGPA * 7.1 + 11` and `CGPA = (Percentage - 11) / 7.1` this calculator will help you to convert your CGPA to percentage and vice versa.
+
+Start typing in any field and the value will be calculated automatically.
+
+## Tech Stacks :-
+- HTML
+- CSS
+- JavaScript
+
+## Screenshot :-
+
diff --git a/Calculators/CGPA-Percentage-Calculator/index.html b/Calculators/CGPA-Percentage-Calculator/index.html
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+++ b/Calculators/CGPA-Percentage-Calculator/index.html
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+
+
+
+ CGPA ⟷ Percentage | Calcdiverse
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diff --git a/Calculators/CGPA-Percentage-Calculator/script.js b/Calculators/CGPA-Percentage-Calculator/script.js
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+++ b/Calculators/CGPA-Percentage-Calculator/script.js
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+// functions to convert values
+function cgpaToPercentage(cgpa) {
+ return cgpa * 7.1 + 11
+}
+
+function percentageToCGPA(percentage) {
+ return (percentage - 11) / 7.1
+}
+
+// Function to handle conversion and display values
+function convertCGPAToPercentage() {
+ cleanError()
+ let cgpaInput = parseFloat(document.getElementById('cgpaInput').value)
+ if (!isNaN(cgpaInput) && cgpaInput >= 0 && cgpaInput <= 10) {
+ let percentage = cgpaToPercentage(cgpaInput).toFixed(2)
+ percentageInput.value = percentage
+ } else {
+ // resetting values
+ cgpaInput.value = null
+ percentageInput.value = null
+ showError('Invalid CGPA. Please enter a value between 0 and 10.')
+ }
+}
+
+function convertPercentageToCGPA() {
+ cleanError()
+ let percentageInput = parseFloat(
+ document.getElementById('percentageInput').value
+ )
+ if (
+ !isNaN(percentageInput) &&
+ percentageInput >= 0 &&
+ percentageInput <= 100
+ ) {
+ let cgpa = percentageToCGPA(percentageInput).toFixed(2)
+ // for too low percentage cgpa goes negative
+ if (cgpa < 0) {
+ showError('Percentage too low')
+ } else {
+ cgpaInput.value = cgpa
+ }
+ } else {
+ // resetting values
+ cgpaInput.value = null
+ percentageInput.value = null
+ showError('Invalid Percentage. Please enter a value between 0 and 100.')
+ }
+}
+
+document.addEventListener('DOMContentLoaded', function () {
+ let cgpaInput = document.getElementById('cgpaInput')
+ let percentageInput = document.getElementById('percentageInput')
+ cgpaInput.addEventListener('input', convertCGPAToPercentage)
+ percentageInput.addEventListener('input', convertPercentageToCGPA)
+})
+
+function showError(message) {
+ let error = document.getElementById('error')
+ error.innerHTML = message
+}
+
+function cleanError() {
+ let error = document.getElementById('error')
+ error.innerHTML = ''
+}
diff --git a/Calculators/CGPA-Percentage-Calculator/style.css b/Calculators/CGPA-Percentage-Calculator/style.css
new file mode 100644
index 000000000..2d17d319e
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+++ b/Calculators/CGPA-Percentage-Calculator/style.css
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+input[type='number']::-webkit-inner-spin-button,
+input[type='number']::-webkit-outer-spin-button {
+ -webkit-appearance: none;
+ margin: 0;
+}
diff --git a/index.html b/index.html
index 834596634..05f97d457 100644
--- a/index.html
+++ b/index.html
@@ -1709,6 +1709,20 @@ Perfoms mathematical operations on complex numbers.
+
+
+
CGPA Percentage Calculator
+ Converts CGPA to percentage and vice-versa.
+
+
+
+