The CFT Rate Calculator (Cubic Feet Rate) is an essential tool used in logistics, construction, shipping, and moving industries. It determines the total volume of an object or space in cubic feet and calculates the associated cost based on a specific rate per cubic foot. This is particularly relevant when purchasing materials like sand, wood, or aggregates, or when estimating shipping costs for cargo.
How to Calculate CFT?
CFT stands for Cubic Feet. To calculate the CFT of any rectangular object or space, you need to measure its three dimensions: Length, Width, and Height. Since measurements are often taken in a mix of feet and inches, it is crucial to convert all values to a standard unit (feet) before multiplying.
Using a digital CFT calculator eliminates manual conversion errors, especially when dealing with inches. It ensures accurate billing for transport, accurate material orders for construction sites, and helps in budget planning for projects involving volumetric pricing.
function calculateCFT() {
// 1. Get input values (Feet)
var lFt = parseFloat(document.getElementById('lengthFeet').value);
var wFt = parseFloat(document.getElementById('widthFeet').value);
var hFt = parseFloat(document.getElementById('heightFeet').value);
// 2. Get input values (Inches) – default to 0 if empty
var lIn = parseFloat(document.getElementById('lengthInches').value);
var wIn = parseFloat(document.getElementById('widthInches').value);
var hIn = parseFloat(document.getElementById('heightInches').value);
// 3. Get Rate
var rate = parseFloat(document.getElementById('ratePerCft').value);
// Handle NaN for dimensions (treat empty as 0)
if (isNaN(lFt)) lFt = 0;
if (isNaN(wFt)) wFt = 0;
if (isNaN(hFt)) hFt = 0;
if (isNaN(lIn)) lIn = 0;
if (isNaN(wIn)) wIn = 0;
if (isNaN(hIn)) hIn = 0;
// 4. Convert dimensions to pure Feet
// Formula: Feet + (Inches / 12)
var totalLength = lFt + (lIn / 12);
var totalWidth = wFt + (wIn / 12);
var totalHeight = hFt + (hIn / 12);
// 5. Calculate Volume (CFT)
var totalCFT = totalLength * totalWidth * totalHeight;
// 6. Calculate Total Cost
// If rate is not provided or invalid, we just show 0 for cost
if (isNaN(rate)) {
rate = 0;
}
var totalCost = totalCFT * rate;
// 7. Display Results
var resultBox = document.getElementById('resultsDisplay');
var displayVol = document.getElementById('displayVolume');
var displayRate = document.getElementById('displayRate');
var displayTotal = document.getElementById('displayTotal');
// Only show result box if we have a volume greater than 0
if (totalCFT > 0) {
resultBox.style.display = 'block';
// Format to 2 decimal places
displayVol.innerHTML = totalCFT.toFixed(2) + " ft³";
displayRate.innerHTML = rate.toFixed(2) + " / ft³";
// Format currency output depending on locale or generic symbol
// Using a generic format here
displayTotal.innerHTML = totalCost.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
} else {
alert("Please enter valid dimensions greater than 0.");
resultBox.style.display = 'none';
}
}