What is money factor and how does it relate to interest rate?

Money factor is the interest rate expressed in lease format. To convert to APR, multiply by 2,400. A money factor of 0.00200 equals an APR of 4.8%. Always ask the dealer for the money factor and verify it's reasonable before signing.

What is residual value in a lease?

Residual value is the estimated worth of the car at lease end, set by the leasing company as a percentage of MSRP. Higher residual means lower monthly payments because you're financing less depreciation. Residuals are typically 45–60% for 36-month leases.

Is it better to lease or buy?

Leasing is better when: you want lower monthly payments, prefer always having a new car, drive fewer than 15,000 miles/year, and don't want ownership responsibility. Buying is better when: you want to build equity, drive a lot, plan to keep the car long-term, or want no mileage restrictions.

What fees should I watch for in a lease?

Watch for: acquisition fee ($400–$900, usually non-negotiable), disposition fee at lease end ($300–$500), excess mileage fees ($0.15–$0.30/mile over), and wear-and-tear charges. These can add thousands to the total cost of a lease.

⚖️Comparisons

Is Leasing Your Next Car Actually Worth It?

Is leasing your next car worth it?

What This Does

Leasing a car feels affordable — the monthly payment is almost always lower than a loan payment for the same vehicle. But lower payments don't mean lower cost. Leasing means you pay for depreciation without ever owning the asset, and at the end of the lease you have nothing to show for years of payments. Understanding whether leasing or buying is better for you requires comparing total costs, not just monthly payments. The true cost of a lease is driven by four factors: the capitalized cost (negotiated selling price), the residual value (what the car is worth at lease end), the money factor (the lease's interest rate equivalent), and the lease term. Dealers profit significantly from leases because most customers only compare monthly payments — not the total amount paid, the effective interest rate, or what ownership of the same car would cost. This calculator computes your actual monthly lease payment from first principles, shows the total amount you'll pay over the lease term, computes the effective APR equivalent of the money factor, and compares your total lease cost directly against financing the same vehicle. Use it before stepping into a dealership to negotiate from a position of knowledge — and to decide whether leasing actually serves your financial situation.

When Should You Use This?

→Evaluating a lease offer from a dealer before you sign
→Comparing leasing vs buying the same vehicle over a 3–5 year period
→Calculating whether a dealer's quoted monthly payment matches the actual terms
→Deciding if a low-mileage lifestyle makes leasing cost-effective for you
→Understanding what the money factor represents as an APR equivalent

Example Scenario

Jessica is considering a $42,000 SUV with a 36-month lease. The dealer quotes her $489/month with $2,500 due at signing. Using the calculator, she finds the residual is 55% ($23,100) and the money factor is 0.00185 (4.44% APR). Her total lease cost over 3 years: $20,104. Buying the same car with a 4.9% loan and selling at 55% residual after 3 years costs $8,200 more upfront but leaves her owning a $23,100 asset. She decides to buy.

Auto Lease Calculator

Monthly Payment · Money Factor · Residual Impact · Lease vs Buy

Results update in real time as you adjust any input.

Lease Terms

Vehicle MSRP

Cap Cost (Negotiated Price)

Residual Value (% of MSRP)

Typical 36mo: 45–60% · Higher residual = lower payment

Money Factor

× 2400 = APR · 4.44% eff. APR

Lease Term

Down Payment / Cap Reduction

$0 recommended — lost if car is totaled

Annual Miles

Standard: 10k–15k/yr · Over-mileage: $0.15–0.25/mi

Acquisition Fee

Disposition Fee

Often waived when re-leasing same brand

Buy Comparison

Buy APR (%)

Loan Term

About This Calculator

This auto lease calculator uses the standard automotive industry lease formula to compute monthly payments from MSRP, cap cost (negotiated price), residual percentage, money factor, and term. It separately calculates the depreciation charge (vehicle value decline per month) and finance charge (interest cost per month), and compares the total lease cost against buying the same vehicle at a specified APR and term. All results update in real time as you adjust any input. Down payment, acquisition fee, and disposition fee are all included in the all-in cost calculation.

The Breakdown tab renders a donut PieChart of total lease cost components (depreciation, finance charges, down payment, acquisition fee, disposition fee), a horizontal payment composition bar showing the per-month split, and a bar chart of monthly payment at five standard lease terms. The Sensitivity tab shows a line chart of monthly payment across six money factor scenarios with your MF marked by a larger dot, plus a bar chart of monthly payment at five residual percentage scenarios, both accompanied by full sensitivity tables. The Comparison tab shows a grouped bar chart of lease vs buy monthly payment and total cost, plus a head-to-head comparison table.

Lease score (0–100) rewards low money factor (the strongest lever), high residual percentage, cap cost discount below MSRP, and zero or low down payment. Dynamic accent: emerald (Excellent Deal ≥75), indigo (Good Terms ≥55), amber (Acceptable ≥38), red (Costly — Renegotiate). Two risk flags auto-trigger: money factor above 0.0025 (equivalent APR above 6%) and annual mileage below 10,000 (suggesting a lower mileage package may be more appropriate). The buy comparison assumes the car is sold at its residual value at the end of the purchase term, providing a net cost comparison on equal footing.

Results are estimates only and do not constitute financial, tax, or legal advice. Consult a qualified professional before making financial decisions.