This calculator helps estimate the shipping costs you might encounter when selling on eBay. Remember that actual costs can vary based on the specific carrier, service level, package dimensions, and buyer location.
function calculateShipping() {
var itemWeight = parseFloat(document.getElementById("itemWeight").value);
var packageLength = parseFloat(document.getElementById("packageLength").value);
var packageWidth = parseFloat(document.getElementById("packageWidth").value);
var packageHeight = parseFloat(document.getElementById("packageHeight").value);
var baseRate = parseFloat(document.getElementById("baseRate").value);
var weightSurchargePerLb = parseFloat(document.getElementById("weightSurchargePerLb").value);
var dimensionalWeightFactor = parseFloat(document.getElementById("dimensionalWeightFactor").value);
var handlingFee = parseFloat(document.getElementById("handlingFee").value);
var resultElement = document.getElementById("result");
resultElement.innerHTML = ""; // Clear previous results
if (isNaN(itemWeight) || isNaN(packageLength) || isNaN(packageWidth) || isNaN(packageHeight) ||
isNaN(baseRate) || isNaN(weightSurchargePerLb) || isNaN(dimensionalWeightFactor) || isNaN(handlingFee) ||
itemWeight <= 0 || packageLength <= 0 || packageWidth <= 0 || packageHeight <= 0 ||
baseRate < 0 || weightSurchargePerLb < 0 || dimensionalWeightFactor <= 0 || handlingFee < 0) {
resultElement.innerHTML = "Please enter valid positive numbers for all fields.";
return;
}
// Calculate dimensional weight
var packageVolume = packageLength * packageWidth * packageHeight;
var dimensionalWeight = packageVolume * dimensionalWeightFactor;
// Determine the greater of actual weight or dimensional weight
var shippingWeight = Math.max(itemWeight, dimensionalWeight);
// Calculate shipping cost
var weightBasedCost = shippingWeight * weightSurchargePerLb;
var totalShippingCost = baseRate + weightBasedCost + handlingFee;
resultElement.innerHTML = "