House Interest Calculator

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Car Lease Payment Calculator

Estimate your monthly car lease cost including depreciation and rent charge.

Estimated Monthly Payment: $0.00
Monthly Depreciation: $0.00
Monthly Rent Charge: $0.00
Total Lease Cost: $0.00
Residual Value (Buyout): $0.00

How to Calculate Your Car Lease Payment

Understanding how car lease payments are calculated can save you thousands of dollars at the dealership. Unlike a standard car loan, a lease focuses on the vehicle's depreciation during the time you drive it, rather than the total purchase price.

The Core Components of a Lease

To use our calculator effectively, you should understand these four key metrics:

  • Gross Capitalized Cost: This is the price of the car plus any added fees. Negotiating this price is just as important as negotiating a purchase price.
  • Residual Value: This is the predicted value of the car at the end of the lease. A higher residual value lowers your monthly payment because you are paying for less depreciation.
  • Money Factor: This represents the interest rate. To convert the Money Factor to a standard APR, multiply it by 2400 (e.g., 0.00125 * 2400 = 3% APR).
  • Lease Term: The duration of the lease, typically 24, 36, or 48 months.

The Formula We Use

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

1. Adjusted Cap Cost = (Price – Down Payment – Trade-in)
2. Monthly Depreciation = (Adjusted Cap Cost – Residual Value) / Term
3. Monthly Rent Charge = (Adjusted Cap Cost + Residual Value) * Money Factor
4. Total Monthly Payment = Depreciation + Rent Charge

Example Calculation

If you lease a car priced at $30,000 with a 60% residual value ($18,000) for 36 months, and put $2,000 down:

  • Adjusted Cap Cost: $28,000
  • Monthly Depreciation: ($28,000 – $18,000) / 36 = $277.78
  • Rent Charge (at 0.0015 MF): ($28,000 + $18,000) * 0.0015 = $69.00
  • Total Payment: $346.78 (plus taxes)
function calculateLease() { // Get values var price = parseFloat(document.getElementById('carPrice').value); var down = parseFloat(document.getElementById('downPayment').value) || 0; var tradeValue = parseFloat(document.getElementById('tradeIn').value) || 0; var term = parseFloat(document.getElementById('leaseTerm').value); var residualPct = parseFloat(document.getElementById('residualPercent').value); var mf = parseFloat(document.getElementById('moneyFactor').value); // Basic Validation if (isNaN(price) || isNaN(term) || isNaN(residualPct) || isNaN(mf) || term <= 0) { alert("Please enter valid numerical values for all required fields."); return; } // Calculations var adjCapCost = price – down – tradeValue; var residualValue = price * (residualPct / 100); // Monthly Depreciation = (Cap Cost – Residual) / Term var depreciationFee = (adjCapCost – residualValue) / term; // Monthly Rent Charge = (Cap Cost + Residual) * Money Factor var rentCharge = (adjCapCost + residualValue) * mf; var monthlyTotal = depreciationFee + rentCharge; var totalCostOfLease = (monthlyTotal * term) + down + tradeValue; // Display Results document.getElementById('monthlyTotal').innerText = formatCurrency(monthlyTotal); document.getElementById('monthlyDepreciation').innerText = formatCurrency(depreciationFee); document.getElementById('monthlyRent').innerText = formatCurrency(rentCharge); document.getElementById('totalLeaseCost').innerText = formatCurrency(totalCostOfLease); document.getElementById('buyoutValue').innerText = formatCurrency(residualValue); document.getElementById('resultBox').style.display = 'block'; } function formatCurrency(num) { if (num < 0) return "$0.00"; return "$" + num.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); }

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