.lease-calc-container {
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
max-width: 800px;
margin: 20px auto;
padding: 25px;
border: 1px solid #e1e4e8;
border-radius: 12px;
background-color: #ffffff;
color: #333;
box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}
.lease-calc-container h2 {
color: #1a1a1a;
text-align: center;
margin-bottom: 25px;
font-size: 28px;
}
.input-grid {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 20px;
margin-bottom: 20px;
}
@media (max-width: 600px) {
.input-grid { grid-template-columns: 1fr; }
}
.input-group {
display: flex;
flex-direction: column;
}
.input-group label {
font-weight: 600;
margin-bottom: 8px;
font-size: 14px;
color: #4a5568;
}
.input-group input {
padding: 12px;
border: 1px solid #cbd5e0;
border-radius: 6px;
font-size: 16px;
}
.calc-btn {
width: 100%;
background-color: #2b6cb0;
color: white;
padding: 15px;
border: none;
border-radius: 6px;
font-size: 18px;
font-weight: bold;
cursor: pointer;
transition: background-color 0.2s;
margin-top: 10px;
}
.calc-btn:hover {
background-color: #2c5282;
}
.result-box {
margin-top: 25px;
padding: 20px;
background-color: #f7fafc;
border-radius: 8px;
display: none;
}
.result-item {
display: flex;
justify-content: space-between;
margin-bottom: 10px;
font-size: 16px;
}
.result-total {
border-top: 2px solid #e2e8f0;
padding-top: 15px;
margin-top: 15px;
font-size: 22px;
font-weight: bold;
color: #2d3748;
}
.lease-article {
margin-top: 40px;
line-height: 1.6;
color: #4a5568;
}
.lease-article h3 {
color: #2d3748;
margin-top: 25px;
}
.lease-article ul {
padding-left: 20px;
}
Car Lease Monthly Payment Calculator
Calculate Monthly Payment
Net Capitalized Cost:
$0.00
Residual Value:
$0.00
Monthly Depreciation:
$0.00
Monthly Rent Charge:
$0.00
Estimated Monthly Payment:
$0.00
How Car Lease Payments are Calculated
Understanding your car lease payment is crucial before stepping onto the dealership lot. Unlike a traditional auto loan where you pay for the entire value of the vehicle, a lease payment is primarily based on the vehicle's depreciation during the time you drive it.
Key Leasing Terms Explained
Gross Capitalized Cost: This is the negotiated price of the vehicle. Just like buying a car, you should always negotiate this number down from the MSRP.Residual Value: This is the estimated value of the car at the end of the lease. A higher residual value results in lower monthly payments because you are "using up" less of the car's value.Money Factor: This represents the interest rate on a lease. To convert the money factor to a standard APR, multiply it by 2400. For example, a money factor of 0.00125 equals a 3% APR.Cap Cost Reductions: This includes your down payment, trade-in credit, and any manufacturer rebates that reduce the amount being financed.
The Lease Formula
The monthly payment consists of two main parts: the Depreciation Fee and the Rent Charge (Interest).
Depreciation Fee = (Net Cap Cost – Residual Value) / Lease Term
Rent Charge = (Net Cap Cost + Residual Value) × Money Factor
Example Calculation
If you lease a car with an MSRP of $40,000, a negotiated price of $38,000, a 60% residual ($24,000), and a 36-month term with a 0.0015 money factor:
Monthly Depreciation: ($38,000 – $24,000) / 36 = $388.89
Monthly Rent Charge: ($38,000 + $24,000) * 0.0015 = $93.00
Base Payment: $481.89 + Local Sales Tax
function calculateLease() {
var msrp = parseFloat(document.getElementById('msrp').value);
var grossCapCost = parseFloat(document.getElementById('grossCapCost').value);
var downPayment = parseFloat(document.getElementById('downPayment').value) || 0;
var tradeIn = parseFloat(document.getElementById('tradeIn').value) || 0;
var leaseTerm = parseFloat(document.getElementById('leaseTerm').value);
var residualPercent = parseFloat(document.getElementById('residualPercent').value);
var moneyFactor = parseFloat(document.getElementById('moneyFactor').value);
var taxRate = parseFloat(document.getElementById('taxRate').value) || 0;
if (isNaN(msrp) || isNaN(grossCapCost) || isNaN(leaseTerm) || leaseTerm <= 0) {
alert("Please enter valid numbers for price and term.");
return;
}
// 1. Calculate Net Capitalized Cost
var netCapCost = grossCapCost – downPayment – tradeIn;
// 2. Calculate Residual Value
var residualValue = msrp * (residualPercent / 100);
// 3. Calculate Monthly Depreciation
var monthlyDepreciation = (netCapCost – residualValue) / leaseTerm;
if (monthlyDepreciation < 0) monthlyDepreciation = 0;
// 4. Calculate Monthly Rent Charge (Interest)
var monthlyRentCharge = (netCapCost + residualValue) * moneyFactor;
// 5. Calculate Subtotal and Tax
var basePayment = monthlyDepreciation + monthlyRentCharge;
var monthlyTax = basePayment * (taxRate / 100);
var totalMonthlyPayment = basePayment + monthlyTax;
// Display Results
document.getElementById('resNetCapCost').innerText = "$" + netCapCost.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
document.getElementById('resResidualValue').innerText = "$" + residualValue.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
document.getElementById('resDepreciation').innerText = "$" + monthlyDepreciation.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
document.getElementById('resRentCharge').innerText = "$" + monthlyRentCharge.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
document.getElementById('resTotalPayment').innerText = "$" + totalMonthlyPayment.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
document.getElementById('leaseResult').style.display = 'block';
}