Auto Lease Calculator
Calculate a car lease payment from the vehicle price, residual value and money factor — the depreciation fee plus rent charge that make up every lease quote.
How to use this calculator
- 1Enter the negotiated price and any down payment.
- 2Enter the residual value percentage and money factor (as an equivalent APR) from your lease worksheet — these come from the leasing company, not from you.
How the calculation works
Depreciation fee = (Cap cost − Residual) ÷ Term. Rent charge = (Cap cost + Residual) × Money factor. Money factor = APR ÷ 2400- Cap cost
- Capitalized cost — the negotiated price minus any down payment or trade-in credit
- Residual
- The vehicle's contractually set value at lease end
- Money factor
- The lease-world equivalent of an interest rate, usually shown as a small decimal like 0.00250
The rent charge uses the sum of cap cost and residual (not just the financed amount) because you are effectively "renting" the vehicle's full value for the term, not just the depreciating portion — this is different from loan interest, which is charged only on the declining balance.
Multiplying money factor by 2400 recovers the approximate equivalent APR — dealers often quote only the money factor, which can obscure how the rate compares to a loan.
Worked example
$35,000 vehicle, $2,000 down, 58% residual, 36 months, 6% APR, 7% tax
- 1.Cap cost: $35,000 − $2,000 = $33,000. Residual value: $35,000 × 58% = $20,300.
- 2.Depreciation fee: ($33,000 − $20,300) ÷ 36 = $352.78.
- 3.Money factor: 6% ÷ 2400 = 0.0025. Rent charge: ($33,000 + $20,300) × 0.0025 = $133.25.
- 4.Base payment: $352.78 + $133.25 = $486.03. Tax at 7%: $34.02. Total: $520.05.
Result: $520.05 a month
What leasing a car actually is
A lease is not a loan on the full price of the car — it is a payment for the right to use the car for a fixed period, plus a finance charge, covering only the portion of the vehicle’s value it is expected to lose while it is in the driveway. At the end of the term the car goes back to the leasing company, unless the contract’s buyout option is exercised to keep it.
That distinction is why a lease payment on an expensive car can look surprisingly close to a loan payment on a cheaper one: a vehicle that is predicted to hold its value well has less depreciation to pay for, regardless of its sticker price.
The pieces that make up a lease quote
A handful of figures, most of them set by the leasing company rather than negotiated the way a purchase price is, combine to produce the monthly payment.
- Capitalized cost — the negotiated price the lease is based on, after any down payment or trade-in credit — this is the one number in the whole deal that is genuinely negotiable, and the one dealers most often try to keep the focus away from.
- Residual value — the car’s contractually fixed value at lease end, set by the leasing company using its own depreciation forecasts for that model — not something a shopper negotiates.
- Money factor — the lease-industry equivalent of an interest rate, shown as a small decimal rather than a percentage, which is one reason lease financing costs are harder to compare across offers than a loan’s APR.
- Mileage allowance — the yearly distance the contract permits before a per-mile overage charge applies at return — set well below what many drivers actually use, which quietly inflates the true cost of leases for higher-mileage drivers.
Leasing versus buying
The lower monthly payment is the headline reason people lease, but it comes with real trade-offs against ownership.
- No equity — every lease payment pays for use of the car, not a stake in it — at the end there is nothing to sell or trade in, unlike a loan that is eventually paid off.
- Mileage and condition limits — exceeding the mileage allowance or returning the car with more than normal wear both trigger charges that an owned car never incurs.
- Always a payment — buying eventually ends in a paid-off car and no payment at all; leasing typically means moving straight into another lease when the term ends.
- Access to a newer car more often — the one clear advantage — a shorter commitment means driving a car that is usually still under its original factory warranty, with less exposure to major repair costs.
Getting a fair deal on a lease
Because so much of a lease is set by the leasing company rather than negotiated, the few things a shopper does control matter more than they might expect.
- 1Negotiate the capitalized cost like a purchase — starting from the vehicle’s selling price, not the monthly payment the dealer first quotes — a lower payment can hide a worse deal on the underlying price.
- 2Ask for the money factor directly — converting it to an equivalent APR makes it possible to sanity-check the financing cost against current loan rates.
- 3Set the mileage allowance to match real driving — paying a bit more upfront for a higher mileage cap is usually cheaper than paying the per-mile overage fee at the end.
- 4Read the end-of-lease terms before signing — excess wear-and-tear charges, disposition fees and early termination penalties are all standard, and knowing them in advance avoids an unpleasant bill at return.
What this assumes, and where it stops
Assumptions
- The money factor (or equivalent APR) and residual value are as stated by the leasing company — these are set by them, not negotiated the way a purchase price is.
Limitations
- Does not model mileage overage fees, wear-and-tear charges, or acquisition/disposition fees, all of which are common additional lease costs.
- Tax treatment varies by state — some states tax the full vehicle price upfront rather than each monthly payment, which this calculator does not model as an alternative.
Common questions
What is a money factor, and why is it such a small number?
It is the lease-industry way of expressing a financing rate, typically shown as a decimal like 0.00250 rather than a percentage. Multiplying it by 2400 converts it to the approximately equivalent APR — dealers sometimes quote only the money factor specifically because a small decimal reads as less significant than the equivalent interest rate.
Why does a higher residual value mean a lower payment?
Because the depreciation fee — the larger part of most lease payments — is based on how much value the car is expected to lose, which is the gap between its price and its residual value. A car predicted to hold its value well (a high residual) has a smaller gap to finance, which is exactly why certain models lease more cheaply than their purchase price alone would suggest.
Sources
- Understanding vehicle leasing — US Consumer Financial Protection Bureau
Formula and content last reviewed on .
Results are estimates for information only, not professional advice.
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