Money Factor Calculator
A money factor is the way lease companies express the financing cost on a car lease. This calculator converts between money factor and APR, computes your full monthly lease payment broken down into depreciation and rent charge, and lets you reverse-solve the implied money factor from a payment you already know. All results update as you type.
What is a money factor?
A money factor is the way leasing companies express the financing cost of a car lease. Instead of quoting an annual percentage rate, lenders quote a tiny decimal such as 0.00125. The number looks unfamiliar, but it works the same way as interest on a loan: the higher the money factor, the more you pay each month in financing charges. To convert a money factor to the equivalent APR you simply multiply by 2,400, so 0.00125 x 2,400 = 3% APR. The multiplier of 2,400 combines two factors: 12 months per year and the fact that lease interest is applied to the average of the starting and ending balance (approximated as half the financed amount), which doubles the effective rate.
How is the monthly lease payment calculated?
A monthly lease payment has two core components. The depreciation charge covers the portion of the vehicle value you consume during the lease. It is calculated as the adjusted capitalized cost (negotiated price minus down payment plus fees) minus the residual value, divided by the number of months in the lease. The rent charge, sometimes called the finance charge, covers the cost of financing. It is calculated as the sum of the adjusted capitalized cost and the residual value, multiplied by the money factor: (cap cost + residual) x money factor. Adding those two amounts gives the pre-tax monthly payment. If your state taxes monthly lease payments (most US states do), the applicable sales tax rate is applied on top to produce the total monthly payment you will see on your contract.
Negotiating the money factor
Unlike residual values, which are set by the manufacturer and cannot be negotiated, the money factor can sometimes be improved, particularly at independent dealerships or credit unions. Start by asking the finance manager to disclose the money factor in writing. If you already know the payment and the other lease terms, you can use the reverse-solve mode on this calculator to work backward to the implied money factor, then compare it against the rate the dealer quotes. A discrepancy means either fees have been rolled in or the rate has been marked up. You can also compare the effective APR against current new-car loan rates: if you can borrow money more cheaply, buying may be the better financial option.
Residual value, down payment, and total lease cost
The residual value is the vehicle predicted worth at lease end, set by the lessor as a percentage of MSRP. A higher residual reduces the depreciation charge and lowers your monthly payment. Because you pay only for the vehicle value you consume, a car with a strong residual is almost always cheaper to lease than one with a weak residual, even if their sticker prices are the same. Down payments (called cap reductions in a lease) reduce the adjusted capitalized cost and therefore reduce both the depreciation and rent components of the payment. Unlike loan down payments, they do not reduce total interest significantly, so most financial advisors suggest minimizing the down payment on a lease because that money is unrecoverable if the car is totalled. The total lease spend shown by this calculator is the sum of all monthly payments plus the drive-off amount, giving you a clear picture of the true cost to compare with a purchase.
Common money factor to APR reference table
| Money factor | Equivalent APR | Rate quality |
|---|---|---|
| 0.00001 | 0.024% | Manufacturer subvented / zero-APR deal |
| 0.00042 | 1.0% | Excellent - top-tier credit + incentive |
| 0.00083 | 2.0% | Excellent |
| 0.00125 | 3.0% | Very good |
| 0.00167 | 4.0% | Good |
| 0.00208 | 5.0% | Good |
| 0.00250 | 6.0% | Average |
| 0.00292 | 7.0% | Average |
| 0.00333 | 8.0% | Below average |
| 0.00375 | 9.0% | Below average |
| 0.00417 | 10.0% | High |
| 0.00500 | 12.0% | High - consider negotiating |
Multiply any money factor by 2,400 to get the approximate APR. Rates below 0.00125 (3% APR) are often manufacturer-subvented offers.
Frequently asked questions
What does a money factor of 0.00125 mean in APR terms?
A money factor of 0.00125 multiplied by 2,400 equals 3% APR. This is considered a good rate and is often a manufacturer-subvented (subsidized) rate reserved for buyers with excellent credit scores.
Why do dealers use money factors instead of APR?
Money factors are not regulated to be disclosed in the same way APRs are on loans, which historically gave dealers room to obscure the financing cost. Knowing the conversion formula (multiply by 2,400) lets you instantly translate any money factor into a familiar percentage you can compare against bank or credit union rates.
Can I negotiate the money factor on a lease?
Sometimes. Manufacturer-set base rates (called "buy rates") cannot be changed, but dealers may apply a markup above the buy rate and pocket the difference. Asking for the money factor in writing and comparing it to the published rates on forums like Edmunds or Leasehackr can reveal whether a markup has been applied. You can then ask the dealer to lower it back to the buy rate.
Is a lower residual value good or bad for a lease?
A lower residual value is bad for the lessee. It means the car is expected to depreciate more, so the monthly depreciation charge is higher and your payment goes up. Cars with strong resale values, such as many Japanese and German brands, tend to have higher residuals and are therefore cheaper to lease relative to their purchase price.
Should I put money down on a lease?
Putting a large down payment (cap reduction) on a lease is generally not recommended by financial advisors. While it lowers your monthly payment, the money is unrecoverable if the vehicle is stolen or totalled early in the lease. The insurance payout goes to the leasing company, not to you. If you want to reduce the payment, multiple security deposits (where allowed) are a safer alternative because you get that money back at lease end.
What is an acquisition fee and does it affect the money factor?
An acquisition fee (also called a bank fee) is a one-time charge by the leasing company to set up the lease, typically between $595 and $1,195 depending on the manufacturer. It is usually rolled into the adjusted capitalized cost, which slightly increases both the depreciation and rent charge. It does not change the money factor itself, but because it raises the cap cost it increases the total amount the money factor is applied to.