Calculate an estimated vehicle lease payment, reverse the money factor from a known payment, or convert between money factor and approximate APR.
Lease Factor (Money Factor) Formula
The lease factor, more commonly called the money factor, is the decimal rate used to determine the financing portion of a vehicle lease. This calculator estimates a level monthly payment, infers a money factor from payment, or converts a money factor to an approximate annualized rate comparison. The comparison is not a loan APR disclosure.
This conversion is a standard lease-industry shortcut. It is helpful for comparisons, but it does not determine the full monthly payment by itself. Your actual lease payment also depends on the adjusted capitalized cost, residual value, lease term, taxes, fees, and any down payment or trade-in credit.
What the Variables Mean
- MF = money factor, written as a small decimal such as 0.00250
- APR (%) = approximate annual percentage rate expressed as a percent, such as 6.0%
- NCC = net or adjusted capitalized cost after negotiations, incentives, and capitalized fees
- RV = residual value, or the estimated vehicle value at lease end
- N = lease term in months
How the Money Factor Fits Into a Lease Payment
A typical lease payment has two main parts: a depreciation charge and a rent charge. The money factor is used in the rent charge portion.
If the money factor goes down, the rent charge usually goes down as well, which lowers the monthly payment when the other lease terms stay the same.
Quick Interpretation
- Lower money factor: lower financing cost, all else equal
- Higher money factor: higher financing cost and usually a higher monthly payment
- Higher residual value: lower depreciation portion of the payment
- Lower negotiated cap cost: lower depreciation and lower finance charge
Common Money Factor to APR Conversions
| Money Factor | Approx. APR | Notes |
|---|---|---|
| 0.00100 | 2.4% | Illustrative conversion |
| 0.00125 | 3.0% | Illustrative conversion |
| 0.00150 | 3.6% | Illustrative conversion |
| 0.00175 | 4.2% | Illustrative conversion |
| 0.00200 | 4.8% | Illustrative conversion |
| 0.00250 | 6.0% | Illustrative conversion |
| 0.00300 | 7.2% | Illustrative conversion |
Example Conversions
If a lease offer is described with a 6% APR equivalent, the money factor is:
If the quoted money factor is 0.00175, the approximate APR equivalent is:
How to Use This Calculator
- Select payment, inferred money factor, or either rate-conversion mode. Enter the visible required fields; USD amounts use at most two decimal places.
- Optional capitalized fees, cash reduction, trade/rebate credit and monthly-payment tax each default to0 when blank.
- Select Calculate. Payment and inverse-factor modes apply the entered tax only to the monthly base payment; other tax rules and contract rounding may differ.
- Use the result to compare lease offers side by side.
Important Notes When Comparing Lease Offers
- The lowest money factor does not always create the cheapest lease if the vehicle price or fees are higher.
- Always compare the selling price, residual value, term, mileage allowance, and upfront fees along with the money factor.
- Small changes in money factor can have a noticeable effect over 24, 36, or 48 months.
- Taxes are handled differently by state, so the final payment may differ from the untaxed base payment.
- Ask whether the quoted money factor is the base rate or includes dealer markup.
Why the Conversion Uses 2400
The factor 2400 comes from the common lease convention used to translate a small monthly-style decimal rate into an annual percentage-style figure. That is why lease quotes often look very different from loan quotes even when they represent similar financing cost levels.
When This Calculator Is Most Useful
- Comparing two lease offers that use different rate formats
- Comparing quoted money factors alongside the full lease terms
- Estimating the financing cost portion of a lease before visiting a dealer
- Translating a money factor into a rate that is easier to recognize
