π Lease Calculator
Monthly lease payment from cap cost, residual, term, and rate.
Monthly Lease Payment
Base payment before tax and fees. Estimates for planning only, not financial advice.
How to Use This Calculator
Enter the asset price, any down payment (which reduces the capitalized cost), the residual value, the APR, and the lease term. The calculator splits the payment into its depreciation and rent-charge parts so you can see where the money goes.
Enter the Asset Price and your Down Payment. The capitalized cost is price minus down payment; negotiate this number like a purchase price, because everything flows from it.
Enter the Residual Value in dollars or as a percent of the price. A 3-year car lease is often 50 to 60 percent; equipment leases vary by asset.
Enter the APR and pick the Lease Term in months. The APR converts to a money factor internally (APR / 2400).
Read the monthly payment with its two components, the total cost of the lease, and the money factor. Add your state tax and fees for the true out-the-door number.
The Lease Payment Formula
The two parts reflect the two things you consume. The depreciation charge pays for the value the asset loses while you hold it: cap cost minus residual, spread over the months. The rent charge is interest on the average amount the lessor has tied up, which is roughly (cap cost + residual) / 2, charged at the monthly rate; the money factor is just the monthly rate divided by 2, which is why APR / 2400 works. This is the standard formula used across the US auto-leasing industry, and it applies equally to equipment leases.
Worked Example
$30,000 vehicle, no down payment, 50 percent residual ($15,000), 36 months, 5 percent APR. Cap cost = $30,000. Money factor = 0.05 / 2400 = 0.002083. Depreciation charge = (30000 - 15000) / 36 = $416.67. Rent charge = (30000 + 15000) x 0.002083 = $93.75. Monthly payment = $510.42. Total lease cost = $510.42 x 36 = $18,375.12. You paid $15,000 of depreciation (the value the car lost) plus $3,375.12 of rent charges, and at the end you may buy the car for the $15,000 residual or hand back the keys.
Negotiating a Lease Like a Pro
Negotiate in this order: the capitalized cost first (it is just a purchase price, and every $1,000 off saves about $28 a month on a 36-month lease), then the money factor (dealers can mark it up; ask for the buy rate), and know that the residual is set by the leasing company and is rarely negotiable. Put as little down as possible: a big down payment on a lease is just prepaid rent, and if the asset is totaled, gap insurance covers the lessor, not your down payment. Watch the mileage allowance, because $0.25 per mile over 12,000 extra miles is a $3,000 surprise at turn-in. Finally, compare the total lease cost against buying and selling after the same period; the lease wins on monthly cash flow, the purchase usually wins on lifetime cost.
Base payment before tax and fees. Estimates for planning only, not financial advice.
Frequently Asked Questions
How is a lease payment calculated?
A lease payment has two parts. The depreciation charge is (capitalized cost - residual value) / months: what the asset loses while you use it. The rent charge is (capitalized cost + residual value) x money factor: the lessor's interest on the average balance. Add them for the base monthly payment. On a $30,000 car with a $15,000 residual, 36 months, and 5 percent APR, that is $416.67 + $93.75 = $510.42.
What is the money factor?
The money factor is the lease world's way of quoting an interest rate. Convert it to APR by multiplying by 2400: a money factor of 0.00208 equals about 5 percent APR. This calculator accepts an APR and converts it internally (money factor = APR / 2400), so you can think in the rate you already understand.
What is the residual value?
The residual is the lessor's prediction of what the asset will be worth when the lease ends, often 50 to 60 percent of MSRP for a 3-year car lease. A higher residual lowers your payment because you pay for less depreciation, but it also raises the buyout price if you want to keep it. Residuals are usually set by the leasing company, not negotiable.
Is leasing cheaper than buying?
Per month, almost always, because you pay for depreciation plus rent instead of the full price. Over a lifetime of always driving new cars, leasing costs more, because you make payments forever and never own anything. Leasing wins for businesses that want predictable costs and tax-deductible payments, and for drivers who always want a car under warranty. Buying wins for anyone who keeps vehicles long term.
What fees appear in a lease that this calculator does not show?
Acquisition fees ($400 to $800), disposition fees at turn-in ($300 to $500), excess mileage charges (often $0.15 to $0.30 per mile), and wear-and-tear bills. Sales tax treatment also varies: some states tax each monthly payment, others tax the full price upfront. Add your state's tax to the base payment this calculator gives for the true monthly cost.