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Car Lease Calculator

Estimate your monthly car lease payment based on price, money factor, and residual value.

(Interest Rate / 2400)

Estimated Monthly Payment

$0.00
Depreciation: $0.00
Rent Charge: $0.00

Understanding Your Car Lease Payment

Leasing a car is different from buying because you are essentially paying for the vehicle's depreciation during the time you drive it, rather than the total value of the car. Using a lease calculator helps you understand where every dollar goes, from the money factor to the residual value.

Key Lease Components Explained

  • Gross Capitalized Cost: This is the agreed-upon price of the vehicle, plus any fees or taxes rolled into the lease.
  • Capitalized Cost Reduction: This is your down payment, trade-in credit, or manufacturer rebates that lower the amount being financed.
  • Residual Value: This is what the car is expected to be worth at the end of the lease. High residual values usually result in lower monthly payments.
  • Money Factor: This is the lease version of an interest rate. To convert the money factor to an APR, multiply it by 2400.

How the Lease is Calculated

A lease payment consists of two main parts: the Depreciation Fee and the Finance Fee (Rent Charge).

1. Depreciation Fee: (Net Cap Cost – Residual Value) / Lease Term

2. Rent Charge: (Net Cap Cost + Residual Value) × Money Factor

Finally, sales tax is applied to the sum of these two figures to reach your total monthly payment.

Example Calculation

If you lease a car for $40,000 with a 60% residual ($24,000) over 36 months, you are paying for $16,000 of depreciation. Divided by 36, your base depreciation is $444.44. Adding the rent charge based on your credit score (money factor) and local sales tax will determine the final check you write every month.

function calculateLease() { var price = parseFloat(document.getElementById('carPrice').value); var down = parseFloat(document.getElementById('downPayment').value); var trade = parseFloat(document.getElementById('tradeIn').value); var term = parseFloat(document.getElementById('leaseTerm').value); var residualPercent = parseFloat(document.getElementById('residualRate').value); var mf = parseFloat(document.getElementById('moneyFactor').value); var tax = parseFloat(document.getElementById('salesTax').value); if (isNaN(price) || isNaN(term) || term <= 0) { alert('Please enter valid vehicle price and lease term.'); return; } // 1. Calculate Net Capitalized Cost var netCapCost = price – down – trade; if (netCapCost < 0) netCapCost = 0; // 2. Calculate Residual Value var residualValue = price * (residualPercent / 100); // 3. Monthly Depreciation Fee // (Cap Cost – Residual Value) / Term var depreciationFee = (netCapCost – residualValue) / term; if (depreciationFee < 0) depreciationFee = 0; // 4. Monthly Finance Fee (Rent Charge) // (Cap Cost + Residual Value) * Money Factor var rentCharge = (netCapCost + residualValue) * mf; // 5. Total Base Payment var basePayment = depreciationFee + rentCharge; // 6. Total with Tax var totalMonthly = basePayment * (1 + (tax / 100)); // Display Results document.getElementById('monthlyTotal').innerHTML = '$' + totalMonthly.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('depreciationVal').innerHTML = '$' + depreciationFee.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('rentChargeVal').innerHTML = '$' + rentCharge.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('leaseResult').style.display = 'block'; }

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