Hello Friends Today, through this tutorial, I will tell you How to Program kWh (kilowatt-hour) from kW (kilowatt) calculator using JavaScript with HTML? Sure, here’s a simple HTML file with JavaScript that calculates kWh (kilowatt-hour) from kW (kilowatt) and time in hours:
index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>kW to kWh Calculator</title>
<style>
body {
font-family: Arial, sans-serif;
margin: 20px;
}
label {
display: block;
margin-bottom: 8px;
}
input {
width: 100%;
padding: 8px;
margin-bottom: 16px;
box-sizing: border-box;
}
button {
background-color: #4CAF50;
color: white;
padding: 10px 15px;
border: none;
border-radius: 4px;
cursor: pointer;
}
button:hover {
background-color: #45a049;
}
</style>
</head>
<body>
<h2>kW to kWh Calculator</h2>
<label for="power">Enter Power (kW):</label>
<input type="number" id="power" placeholder="Enter power in kW">
<label for="time">Enter Time (hours):</label>
<input type="number" id="time" placeholder="Enter time in hours">
<button onclick="calculateKWh()">Calculate kWh</button>
<p id="result"></p>
<script>
function calculateKWh() {
// Get the power input value
const powerKW = parseFloat(document.getElementById('power').value);
// Get the time input value
const timeHours = parseFloat(document.getElementById('time').value);
// Calculate energy (kWh)
const energyKWh = powerKW * timeHours;
// Display the result
document.getElementById('result').innerHTML = `Energy (kWh): ${energyKWh.toFixed(3)} kWh`;
}
</script>
</body>
</html>
This HTML file includes two input fields for entering power in kW and time in hours, a button to trigger the calculation, and a result paragraph to display the calculated energy in kWh. When the button is clicked, the `calculateKWh` function is called, which performs the calculation and updates the result on the page.