Lawn Area and Seed Calculator
body {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
background-color: #f8f9fa;
color: #333;
line-height: 1.6;
margin: 0;
padding: 20px;
}
.loan-calc-container {
max-width: 800px;
margin: 20px auto;
background-color: #ffffff;
padding: 30px;
border-radius: 8px;
box-shadow: 0 2px 15px rgba(0, 74, 153, 0.1);
border: 1px solid #e0e0e0;
}
h1, h2 {
color: #004a99;
text-align: center;
margin-bottom: 20px;
}
.input-group {
margin-bottom: 20px;
display: flex;
flex-direction: column;
align-items: flex-start;
}
.input-group label {
font-weight: 600;
margin-bottom: 8px;
color: #004a99;
display: block;
}
.input-group input[type="number"],
.input-group input[type="text"] {
width: 100%;
padding: 10px 15px;
border: 1px solid #ccc;
border-radius: 4px;
box-sizing: border-box; /* Ensures padding doesn't affect width */
font-size: 1rem;
}
.input-group input[type="number"]:focus,
.input-group input[type="text"]:focus {
border-color: #004a99;
outline: none;
box-shadow: 0 0 0 2px rgba(0, 74, 153, 0.2);
}
button {
background-color: #28a745;
color: white;
border: none;
padding: 12px 25px;
border-radius: 4px;
cursor: pointer;
font-size: 1.1rem;
font-weight: 600;
transition: background-color 0.3s ease;
width: 100%;
margin-top: 10px;
}
button:hover {
background-color: #218838;
}
#result {
margin-top: 30px;
padding: 20px;
background-color: #e9ecef;
border: 1px solid #dee2e6;
border-radius: 4px;
text-align: center;
}
#result h3 {
margin-top: 0;
color: #004a99;
}
.result-value {
font-size: 1.8rem;
font-weight: bold;
color: #28a745;
}
.explanation {
margin-top: 40px;
padding: 25px;
background-color: #eef7ff;
border-left: 5px solid #004a99;
border-radius: 4px;
}
.explanation h2 {
text-align: left;
margin-bottom: 15px;
}
.explanation p, .explanation ul {
margin-bottom: 15px;
}
.explanation code {
background-color: #d0e4f0;
padding: 2px 5px;
border-radius: 3px;
}
.units {
font-size: 0.8rem;
color: #666;
margin-left: 5px;
}
/* Responsive adjustments */
@media (max-width: 600px) {
.loan-calc-container {
padding: 20px;
}
button {
font-size: 1rem;
padding: 10px 20px;
}
.result-value {
font-size: 1.5rem;
}
}
Lawn Area & Seed Calculator
Your Lawn Needs:
Enter dimensions and seed coverage to see results.
Understanding Your Lawn Area and Seed Needs
Properly seeding your lawn requires understanding its size and the coverage rate of your chosen grass seed. This calculator helps you quickly determine the total area of your lawn, the amount of seed you'll need, and the estimated cost.
How it Works:
The calculations are based on straightforward geometric principles and unit conversions:
- Lawn Area Calculation: We assume a rectangular lawn for simplicity. The area of a rectangle is calculated by multiplying its length by its width.
Area = Length × Width
All measurements are in feet, so the resulting area is in square feet (sq ft).
- Total Seed Required: To find out how much seed you need, we divide the total lawn area by the coverage rate of the seed. The coverage rate is typically provided on the seed packaging and tells you how many square feet one pound of seed will cover.
Seed Needed (lbs) = Total Area (sq ft) / Seed Coverage (sq ft per lb)
If the result is a fraction, it's generally advisable to round up to ensure you have enough seed, as some may be lost during application or weather conditions can affect germination.
- Estimated Seed Cost: Once you know the quantity of seed needed, you can estimate the cost by multiplying the total pounds of seed required by the cost per pound.
Total Cost = Seed Needed (lbs) × Cost per Pound ($ per lb)
When to Use This Calculator:
- New Lawn Seeding: Planning to establish a new lawn from seed.
- Overseeding: Improving the density and health of an existing lawn by adding more seed.
- Repairing Patches: Calculating the seed needed for bare or thin spots in your lawn.
- Budgeting: Estimating the cost of lawn seed for your landscaping project.
Using this calculator ensures you purchase the right amount of seed, avoiding both wasteful overbuying and the disappointment of running short mid-project. It also provides a clear cost estimate, helping you plan your lawn care budget effectively.
function calculateLawnNeeds() {
var length = parseFloat(document.getElementById("lawnLength").value);
var width = parseFloat(document.getElementById("lawnWidth").value);
var coverage = parseFloat(document.getElementById("seedCoverage").value);
var costPerPound = parseFloat(document.getElementById("seedCostPerPound").value);
var resultOutputDiv = document.getElementById("resultOutput");
resultOutputDiv.innerHTML = "; // Clear previous results
// Input validation
if (isNaN(length) || length <= 0 ||
isNaN(width) || width <= 0 ||
isNaN(coverage) || coverage <= 0 ||
isNaN(costPerPound) || costPerPound < 0) {
resultOutputDiv.innerHTML = 'Please enter valid positive numbers for all fields (except cost which can be 0).';
return;
}
// Calculations
var lawnArea = length * width;
var seedNeeded = lawnArea / coverage;
var totalCost = seedNeeded * costPerPound;
// Display Results
var areaHtml = 'Estimated Lawn Area:
' + lawnArea.toFixed(2) + ' sq ft';
var seedHtml = 'Total Seed Required:
' + seedNeeded.toFixed(2) + ' lbs';
var costHtml = 'Estimated Seed Cost:
$' + totalCost.toFixed(2) + '';
resultOutputDiv.innerHTML = areaHtml + seedHtml + costHtml;
}