Car Lease Calculator
Calculate your exact monthly car lease payment including depreciation, finance charges, sales tax, and fees. Enter your vehicle's MSRP, negotiated price, money factor, and residual value — free, private, and instant.
How Car Lease Payments Are Calculated
A car lease payment is made up of two main components: depreciation and a finance charge. Unlike a car loan that builds equity, a lease payment covers only the portion of the vehicle you "use" during the lease term, plus the cost of financing that amount.
The formula breaks down as follows. First, your Net Cap Cost is determined: that's the negotiated vehicle price minus your down payment and trade-in value, plus any rolled-in fees such as the acquisition fee. Second, the Residual Value is calculated — this is a percentage of the MSRP (typically 50–60% for a 36-month lease) that represents what the vehicle will be worth at lease end. The monthly depreciation charge is simply the difference between the Net Cap Cost and the Residual Value, divided by the number of months. The monthly finance charge equals the sum of the Net Cap Cost and Residual Value multiplied by the Money Factor. Adding both together gives you the base monthly payment before tax.
According to the FTC's auto leasing guide, dealers are required to disclose all lease terms in a standardized format (the Consumer Leasing Act), so always request a full disclosure before signing.
Understanding Money Factor vs APR
The Money Factor (also called lease factor or lease rate) is the financing cost of your lease expressed as a small decimal number, such as 0.00125. It is directly analogous to an interest rate but presented differently by dealers. To convert a Money Factor to its equivalent Annual Percentage Rate (APR), simply multiply by 2,400: a Money Factor of 0.00125 equals a 3.0% APR.
This conversion is one of the most important lease negotiation tools you have. Many dealers quote only the Money Factor without volunteering the equivalent APR, which makes comparison-shopping difficult. A "good" Money Factor for a well-qualified buyer in 2025–2026 typically equates to an APR between 2% and 5% — roughly the prevailing new-car finance rate. If a dealer quotes a Money Factor that converts to more than 7–8% APR, it is worth negotiating or shopping competing offers from other lenders or manufacturer-subsidized programs.
Unlike an auto loan where you can pay down principal to reduce interest, the Money Factor applies to the combined Cap Cost and Residual throughout the lease. This means the only way to reduce your total finance charge is to negotiate a lower Money Factor or reduce the cap cost.
Tips for Negotiating a Better Lease Deal
Leasing has unique leverage points that most buyers overlook. Here are the most impactful areas to negotiate:
- Negotiate the cap cost (selling price) first. The lower your negotiated price, the lower your monthly depreciation charge. Treat it exactly like buying — never start with the monthly payment.
- Know the Money Factor before you walk in. Manufacturer-published Money Factors change monthly. Sites like Edmunds or dedicated lease forums publish current rates for most brands. A dealer cannot "mark up" the Money Factor in states that require full APR disclosure.
- Avoid large down payments on leases. Down payments reduce your monthly payment but you lose that money if the car is totaled — GAP insurance covers the lease balance, not your prepaid equity. Keep drive-off cash to first month plus fees only.
- Pick the right residual-value vehicle. Vehicles with high residuals (luxury sedans, popular SUVs) cost less to lease because less depreciation is built in. Compare residual percentages across trims — higher trim may have a better residual than base.
- Align mileage to your actual needs. Overages at lease end cost $0.15–$0.30 per mile. If you drive 15,000 miles/year, buy that into the contract upfront — extra miles negotiated at signing cost far less than overage fees.