A lease calculator estimates a monthly lease payment from the capitalized cost, the residual value, the lease rate and the number of months. Formula: Depreciation = (cap − residual) ÷ months. Rent = (cap + residual) × money factor, where money factor = rate ÷ 2,400. Payment = depreciation + rent. A $40,000 car with a $15,000 residual over 36 months at 5% is about $809 a month before tax.
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How to use the lease calculator
- Enter the capitalized cost after any down payment or trade-in.
- Enter the residual value and the lease term in months.
- Enter the annual rate and read the monthly payment.
How the lease calculator works
A lease payment has two parts. The depreciation part pays for the value the vehicle or equipment loses while you use it. The finance part is the rent charge, the lease’s version of interest. The lease calculator uses the standard money-factor method:
- Depreciation = (capitalized cost − residual value) ÷ months
- Money factor = annual rate ÷ 2,400
- Rent charge = (capitalized cost + residual value) × money factor
- Monthly payment = depreciation + rent charge, before tax
Lease calculator worked example
A $40,000 car with a $15,000 residual after 36 months loses $25,000 of value, so depreciation is $25,000 ÷ 36 = $694.44 a month. A 5% rate is a money factor of 5 ÷ 2,400 = 0.00208, so the rent charge is ($40,000 + $15,000) × 0.00208 = $114.58. The lease calculator shows a payment of $809.03 before sales tax and fees.
| Cap cost | Residual | Rate | Months | Depreciation | Rent charge | Payment |
|---|---|---|---|---|---|---|
| $30,000 | $18,000 | 4.8% | 36 | $333.33 | $96.00 | $429.33 |
| $35,000 | $20,000 | 6.0% | 24 | $625.00 | $137.50 | $762.50 |
| $40,000 | $15,000 | 5.0% | 36 | $694.44 | $114.58 | $809.03 |
| $50,000 | $25,000 | 7.2% | 48 | $520.83 | $225.00 | $745.83 |
Lease terms to know
The capitalized cost is the price of the vehicle in the lease, plus any fees rolled in, minus down payment, trade-in or rebates; lower it by negotiating the price just as you would when buying. The residual value is what the lessor expects the vehicle to be worth at the end, usually set as a percentage of the sticker price. The money factor is the lease rate; multiply it by 2,400 to compare it with a loan APR. The CFPB notes that a lease lets you use a car for a set time and mileage, after which you return it, buy it or lease another.
What the payment leaves out
The lease calculator checks that the residual is not above the cap cost and that the term is whole months. It does not add sales tax, acquisition or disposition fees, registration or insurance. Many states tax each monthly payment, so a 7% tax adds about $57 to the $809 example. Leases also charge for miles over the allowance and for excess wear when you return the vehicle. Federal Regulation M requires the lessor to disclose the payment breakdown, the total of payments and these end-of-lease charges in writing.
Tips
- Ask for the money factor and residual in writing.
- A large down payment lowers the payment, but it may be lost if the car is totaled early.
- Pick a mileage allowance close to how much you really drive.
Estimates for education only, not financial advice. Your lender’s figures are final.
Leasing versus buying
Leasing usually means a lower monthly payment than a loan on the same vehicle, because you pay only for the value used during the lease rather than the whole price. In exchange, you own nothing at the end unless you pay the buyout, and you face mileage limits and wear charges. Buying costs more each month but builds equity, and after the loan ends you have no payment at all. If you keep cars for many years and drive a lot, buying tends to cost less over time. If you like a new car every few years and drive a predictable distance, leasing can fit.
To compare, add up the total of lease payments, fees and the down payment over the term, then compare it with the loan payments over the same months minus the car’s expected resale value at that point. Run the lease calculator and a loan calculator with the same price and rate to see both sides clearly.
Related converters and calculators
Related calculators:
- Auto lease calculator: car leases
- Auto loan calculator: buying
- Loan calculator: loans
- Sales tax calculator: tax
Sources
CFPB: What is a car lease?; eCFR: Regulation M, 12 CFR 213.4 lease disclosures; CFPB: Auto loans.
Formula and method
Depreciation = (cap − residual) ÷ months. Rent = (cap + residual) × money factor, where money factor = rate ÷ 2,400. Payment = depreciation + rent.
Requires cap > 0, 0 ≤ residual ≤ cap, rate 0–30% and 1–120 whole months. Shows money factor and total of payments. Excludes tax and fees.
Questions about this calculator
What is a money factor?
The lease rate; annual rate ÷ 2,400.
Does the payment include tax?
No, add your state’s tax.
What is the residual value?
The expected value at the end of the lease.
How do I lower the payment?
Negotiate the cap cost, the money factor or choose a higher residual.
Are fees included?
No, add acquisition and other fees to the cap cost.
Check the assumptions and units before relying on a result. Financial, tax and health estimates do not replace advice for your individual circumstances.
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