.rock-calculator-container {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
max-width: 700px;
margin: 20px auto;
padding: 25px;
border: 1px solid #e0e0e0;
border-radius: 10px;
background-color: #f9f9f9;
box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}
.rock-calculator-container h2 {
text-align: center;
color: #333;
margin-bottom: 25px;
font-size: 1.8em;
}
.rock-calculator-container .input-group {
margin-bottom: 18px;
display: flex;
flex-direction: column;
}
.rock-calculator-container label {
margin-bottom: 8px;
color: #555;
font-weight: 600;
font-size: 0.95em;
}
.rock-calculator-container input[type="number"] {
padding: 12px 15px;
border: 1px solid #ccc;
border-radius: 6px;
font-size: 1em;
width: 100%;
box-sizing: border-box;
transition: border-color 0.3s ease;
}
.rock-calculator-container input[type="number"]:focus {
border-color: #007bff;
outline: none;
box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
}
.rock-calculator-container button {
display: block;
width: 100%;
padding: 14px 20px;
background-color: #28a745;
color: white;
border: none;
border-radius: 6px;
font-size: 1.1em;
font-weight: 700;
cursor: pointer;
transition: background-color 0.3s ease, transform 0.2s ease;
margin-top: 25px;
}
.rock-calculator-container button:hover {
background-color: #218838;
transform: translateY(-1px);
}
.rock-calculator-container button:active {
transform: translateY(0);
}
.rock-calculator-container .results {
margin-top: 30px;
padding-top: 25px;
border-top: 1px solid #eee;
background-color: #e9f7ee;
border-radius: 8px;
padding: 20px;
}
.rock-calculator-container .results h3 {
text-align: center;
color: #28a745;
margin-bottom: 20px;
font-size: 1.5em;
}
.rock-calculator-container .results p {
font-size: 1.1em;
color: #333;
margin-bottom: 10px;
display: flex;
justify-content: space-between;
align-items: center;
padding: 8px 0;
border-bottom: 1px dashed #d4edda;
}
.rock-calculator-container .results p:last-child {
border-bottom: none;
font-weight: 700;
color: #1e7e34;
font-size: 1.2em;
}
.rock-calculator-container .results span.value {
font-weight: 600;
color: #0056b3;
}
.rock-calculator-container .error-message {
color: #dc3545;
margin-top: 15px;
text-align: center;
font-weight: 600;
}
function calculateRockNeeds() {
var areaLength = parseFloat(document.getElementById('areaLength').value);
var areaWidth = parseFloat(document.getElementById('areaWidth').value);
var rockDepth = parseFloat(document.getElementById('rockDepth').value);
var rockDensity = parseFloat(document.getElementById('rockDensity').value);
var rockCostPerYard = parseFloat(document.getElementById('rockCostPerYard').value);
var errorMessageDiv = document.getElementById('errorMessage');
var rockResultsDiv = document.getElementById('rockResults');
errorMessageDiv.style.display = 'none';
rockResultsDiv.style.display = 'none';
if (isNaN(areaLength) || isNaN(areaWidth) || isNaN(rockDepth) || isNaN(rockDensity) || isNaN(rockCostPerYard) ||
areaLength <= 0 || areaWidth <= 0 || rockDepth <= 0 || rockDensity <= 0 || rockCostPerYard < 0) {
errorMessageDiv.textContent = 'Please enter valid positive numbers for all fields.';
errorMessageDiv.style.display = 'block';
return;
}
// Convert depth from inches to feet
var rockDepthFeet = rockDepth / 12;
// Calculate volume in cubic feet
var volumeCubicFeet = areaLength * areaWidth * rockDepthFeet;
// Convert cubic feet to cubic yards (1 cubic yard = 27 cubic feet)
var volumeCubicYards = volumeCubicFeet / 27;
// Calculate estimated weight in tons
var estimatedWeightTons = volumeCubicYards * rockDensity;
// Calculate estimated total cost
var estimatedTotalCost = volumeCubicYards * rockCostPerYard;
document.getElementById('resultVolumeCubicFeet').textContent = volumeCubicFeet.toFixed(2) + ' cu ft';
document.getElementById('resultVolumeCubicYards').textContent = volumeCubicYards.toFixed(2) + ' cu yd';
document.getElementById('resultWeightTons').textContent = estimatedWeightTons.toFixed(2) + ' tons';
document.getElementById('resultTotalCost').textContent = '$' + estimatedTotalCost.toFixed(2);
rockResultsDiv.style.display = 'block';
}
Rock & Gravel Yard Calculator
(Typical gravel: 1.4-1.6 tons/cu yd)
Your Rock & Gravel Estimates:
Volume Needed (Cubic Feet):
Volume Needed (Cubic Yards):
Estimated Weight (Tons):
Estimated Total Cost:
Understanding Your Rock & Gravel Needs with a Yard Calculator
Whether you're planning a new driveway, a decorative pathway, a sturdy base for a shed, or simply refreshing your garden beds, knowing how much rock or gravel you need is crucial. Over-ordering wastes money and creates extra work, while under-ordering leads to delays and additional delivery fees. Our Rock & Gravel Yard Calculator simplifies this process, providing accurate estimates for your landscaping projects.
How to Use the Rock & Gravel Yard Calculator
This calculator takes a few key measurements and material properties to give you a comprehensive estimate:
- Area Length (feet): Measure the total length of the area you wish to cover with rock or gravel.
- Area Width (feet): Measure the total width of the area. For irregular shapes, try to break them down into rectangles or squares and calculate each section separately, then sum them up.
- Desired Rock Depth (inches): This is the thickness of the rock layer you want. Common depths range from 2-4 inches for decorative paths, 4-6 inches for driveways, and 6-12 inches or more for heavy-duty bases.
- Rock Density (tons per cubic yard): Different types of rock and gravel have varying densities. Crushed gravel typically ranges from 1.4 to 1.6 tons per cubic yard. If you know the specific type of rock you're using, check with your supplier for its exact density. The default value of 1.5 tons/cubic yard is a good average for crushed stone.
- Cost Per Cubic Yard ($): Enter the price your supplier charges per cubic yard of the material. This will help estimate your total project cost.
What the Calculator Provides:
Once you input your details and click "Calculate Rock Needs," the calculator will provide the following essential information:
- Volume Needed (Cubic Feet): The raw volume of rock required in cubic feet.
- Volume Needed (Cubic Yards): This is the most common unit for purchasing bulk landscaping materials. Suppliers typically sell rock and gravel by the cubic yard.
- Estimated Weight (Tons): Knowing the weight is important for understanding transportation logistics and ensuring your delivery vehicle can handle the load.
- Estimated Total Cost: A clear financial estimate for the material itself, helping you budget effectively.
Example Calculation:
Let's say you want to create a gravel driveway that is 30 feet long and 12 feet wide, with a desired depth of 6 inches. You've found crushed gravel with a density of 1.5 tons per cubic yard, costing $45 per cubic yard.
- Area Length: 30 feet
- Area Width: 12 feet
- Desired Rock Depth: 6 inches
- Rock Density: 1.5 tons/cubic yard
- Cost Per Cubic Yard: $45
Using the calculator:
- Depth in feet: 6 inches / 12 = 0.5 feet
- Volume (Cubic Feet): 30 ft * 12 ft * 0.5 ft = 180 cubic feet
- Volume (Cubic Yards): 180 cubic feet / 27 = 6.67 cubic yards
- Estimated Weight (Tons): 6.67 cu yd * 1.5 tons/cu yd = 10.00 tons
- Estimated Total Cost: 6.67 cu yd * $45/cu yd = $300.15
So, for this project, you would need approximately 6.67 cubic yards of gravel, weighing about 10 tons, at an estimated cost of $300.15.
Important Considerations:
- Compaction: Depending on the type of rock and its intended use, some compaction will occur. It's often wise to add an extra 5-10% to your volume estimate to account for this, especially for driveways or heavily trafficked areas.
- Waste: Spillage, uneven spreading, and minor adjustments can lead to a small amount of material waste.
- Edging: If you're installing edging or borders, factor in their dimensions as they might reduce the actual area needing rock.
- Delivery Minimums: Many suppliers have minimum delivery quantities or charge flat delivery fees. Factor these into your overall budget.
- Rock Type: Different rock types (e.g., pea gravel, crushed granite, river rock) have different densities, costs, and aesthetic qualities. Always confirm the specifics with your supplier.
By using this Rock & Gravel Yard Calculator, you can approach your landscaping projects with confidence, ensuring you order the right amount of material and stay within your budget.