#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;
box-shadow: 0 4px 15px rgba(0,0,0,0.05);
color: #333;
}
#lease-calc-container h2 {
color: #1a1a1a;
text-align: center;
margin-bottom: 25px;
font-size: 28px;
}
.calc-grid {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 20px;
}
.input-group {
margin-bottom: 15px;
}
.input-group label {
display: block;
font-weight: 600;
margin-bottom: 8px;
font-size: 14px;
color: #4a5568;
}
.input-group input {
width: 100%;
padding: 12px;
border: 1px solid #cbd5e0;
border-radius: 6px;
font-size: 16px;
box-sizing: border-box;
}
.input-group input:focus {
outline: none;
border-color: #3182ce;
box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.1);
}
.calc-btn {
grid-column: span 2;
background-color: #2b6cb0;
color: white;
border: none;
padding: 15px;
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;
}
#lease-result {
grid-column: span 2;
margin-top: 25px;
padding: 20px;
background-color: #f7fafc;
border-radius: 8px;
display: none;
}
.result-item {
display: flex;
justify-content: space-between;
padding: 10px 0;
border-bottom: 1px solid #edf2f7;
}
.result-item:last-child {
border-bottom: none;
margin-top: 10px;
}
.result-label {
font-weight: 500;
color: #4a5568;
}
.result-value {
font-weight: 700;
color: #2d3748;
}
.highlight-payment {
font-size: 24px;
color: #2b6cb0 !important;
}
.article-section {
margin-top: 40px;
line-height: 1.6;
}
.article-section h3 {
color: #2d3748;
margin-top: 25px;
}
@media (max-width: 600px) {
.calc-grid {
grid-template-columns: 1fr;
}
.calc-btn {
grid-column: span 1;
}
}
Car Lease Payment Calculator
MSRP ($)
Negotiated Sales Price ($)
Down Payment ($)
Trade-in Allowance ($)
Residual Value (%)
Money Factor
Lease Term (Months)
Sales Tax (%)
Calculate Monthly Payment
Gross Capitalized Cost:
Residual Value:
Monthly Depreciation:
Monthly Rent Charge:
Estimated Monthly Payment (w/ tax):
How Car Lease Payments Are Calculated
Unlike a traditional auto loan where you pay for the entire value of the vehicle, a car lease only requires you to pay for the vehicle's depreciation during the time you drive it, plus interest (known as the money factor) and taxes.
The Depreciation Fee: This is the largest portion of your payment. It is calculated by taking the "Adjusted Capitalized Cost" (the price you negotiated minus your down payment) and subtracting the "Residual Value" (what the car is expected to be worth at the end of the lease). This total loss in value is divided by the number of months in the lease term.
Key Lease Terms to Know
MSRP: The Manufacturer's Suggested Retail Price. This is used primarily to calculate the Residual Value.Capitalized Cost: This is the negotiated price of the vehicle. Just like buying a car, you can and should negotiate this number.Residual Value: An estimate of the vehicle's worth at the end of the lease, expressed as a percentage of the MSRP. Higher residual values lead to lower monthly payments.Money Factor: This represents the interest rate on a lease. To convert a money factor to a standard APR, multiply it by 2,400. For example, a money factor of 0.00125 is equal to a 3% APR.
Example Calculation
If you lease a car with an MSRP of $35,000 for a negotiated price of $32,000, put $2,000 down, and the car has a 60% residual value after 36 months with a money factor of 0.00125:
Net Cap Cost: $32,000 – $2,000 = $30,000Residual Value: $35,000 × 0.60 = $21,000Monthly Depreciation: ($30,000 – $21,000) / 36 = $250.00Monthly Rent Charge: ($30,000 + $21,000) × 0.00125 = $63.75Base Payment: $250.00 + $63.75 = $313.75
function calculateLease() {
var msrp = parseFloat(document.getElementById('msrp').value);
var salePrice = parseFloat(document.getElementById('salePrice').value);
var downPayment = parseFloat(document.getElementById('downPayment').value) || 0;
var tradeIn = parseFloat(document.getElementById('tradeIn').value) || 0;
var residualPercent = parseFloat(document.getElementById('residualPercent').value);
var moneyFactor = parseFloat(document.getElementById('moneyFactor').value);
var term = parseFloat(document.getElementById('leaseTerm').value);
var taxRate = parseFloat(document.getElementById('taxRate').value) || 0;
if (isNaN(msrp) || isNaN(salePrice) || isNaN(residualPercent) || isNaN(moneyFactor) || isNaN(term)) {
alert("Please enter all required values.");
return;
}
// Adjusted Capitalized Cost
var adjCapCost = salePrice – downPayment – tradeIn;
// Residual Value
var residualValue = msrp * (residualPercent / 100);
// Monthly Depreciation
var monthlyDepreciation = (adjCapCost – residualValue) / term;
// Monthly Rent Charge (Finance Fee)
// Formula: (Net Cap Cost + Residual) * Money Factor
var monthlyRentCharge = (adjCapCost + residualValue) * moneyFactor;
// Base Payment
var basePayment = monthlyDepreciation + monthlyRentCharge;
// Total with Tax
var totalMonthlyPayment = basePayment * (1 + (taxRate / 100));
// Handle edge case where residual is higher than cap cost
if (monthlyDepreciation < 0) {
monthlyDepreciation = 0;
}
// Display Results
document.getElementById('resGrossCap').innerText = '$' + adjCapCost.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
document.getElementById('resResidual').innerText = '$' + residualValue.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
document.getElementById('resDepreciation').innerText = '$' + monthlyDepreciation.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
document.getElementById('resRent').innerText = '$' + monthlyRentCharge.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
document.getElementById('resTotal').innerText = '$' + totalMonthlyPayment.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
document.getElementById('lease-result').style.display = 'block';
}