Car Lease Calculator — Calculate Your Monthly Lease Payment

What a Car Lease Calculator Does

A car lease calculator uses the money factor method — the same formula used by car manufacturers and dealerships — to calculate your exact monthly lease payment. Unlike simplified estimates, this formula accounts for the negotiated cap cost, residual value, money factor, acquisition fee, and sales tax separately, so you can see exactly how each factor changes your payment.

The lease calculator on this page also compares leasing vs financing the same vehicle over the same term, showing you which option costs less on a net basis after accounting for the equity you build by purchasing.

How to Calculate a Monthly Lease Payment

Lease payments have two components: a depreciation charge and a finance charge. Together, they form your base monthly payment before tax.

Step 1 — Calculate the Adjusted Cap Cost

The adjusted cap cost is your negotiated selling price minus any down payment, trade-in credit, and rebates, plus the acquisition fee the lender charges. This is the amount the leasing company is effectively financing.

Step 2 — Determine the Residual Value

The residual value is what the car is worth at the end of the lease, expressed as a percentage of the original MSRP. A higher residual value means lower monthly payments because the leasing company is only financing the depreciation — what the car loses in value over the term. Competitive leases have residual values of 55-65%.

Step 3 — Calculate Monthly Depreciation

Monthly depreciation = (Adjusted Cap Cost minus Residual Value) divided by Lease Term. This is the portion of each payment that covers the car losing value during your lease.

Step 4 — Calculate the Finance Charge

Finance charge = (Adjusted Cap Cost plus Residual Value) multiplied by the Money Factor. The money factor is the interest rate expressed as a decimal — multiply it by 2,400 to convert to an approximate APR. A money factor of 0.00292 equals roughly 7% APR.

Step 5 — Add Tax and Fees

Add the depreciation and finance charge to get your base monthly payment, then multiply by (1 + your state sales tax rate). Some states tax the entire vehicle value, others only tax the monthly payment — the calculator uses the monthly payment method, which is most common.

Real Example: Lease Payment on a $35,000 Vehicle

MSRP: $35,000. Negotiated cap cost: $33,500. Down payment: $2,000. Residual: 55% = $19,250. Money factor: 0.00292 (7% APR). Lease term: 36 months. Acquisition fee: $795. Sales tax: 7%.

Adjusted cap cost = $33,500 - $2,000 + $795 = $32,295. Monthly depreciation = ($32,295 - $19,250) / 36 = $362.36. Finance charge = ($32,295 + $19,250) x 0.00292 = $150.51. Base monthly = $362.36 + $150.51 = $512.87. After tax = $512.87 x 1.07 = $548.77/month.

Lease vs Buy: Which Is Cheaper?

Comparing lease vs buy purely on monthly payment is misleading because financing builds equity while leasing does not. The correct comparison is net cost: total amount paid minus the value you have at the end of the term.

On a 36-month lease of a $35,000 vehicle, you might pay $549/month totaling $19,764 in payments plus $2,000 down = $21,764 with zero equity at the end. Financing the same vehicle at 7% APR for 36 months at $1,015/month totals $36,540 in payments but leaves you with a vehicle worth approximately $25,500 — a net cost of $11,040. In this case, buying wins on net cost despite the higher monthly payment.

The lease vs buy comparison changes based on the residual value, money factor, and how much the vehicle depreciates. Use the Lease vs Buy Calculator on this site to run your specific numbers.

5 Tips for Getting the Best Car Lease Deal

• Negotiate the cap cost like you would a purchase price — the money factor and residual are usually set by the manufacturer, but the selling price is always negotiable.
• Never accept a money factor above the current base rate — ask the dealer what the buy rate (manufacturer rate) is and compare it to what they are quoting.
• Look for vehicles with high residual values — strong-residual vehicles like certain Honda and Toyota models consistently produce the best lease deals.
• Avoid paying a large down payment (cap cost reduction) on a lease — if the car is totaled, you lose that money and insurance only covers the car value, not your cap reduction.
• Match the lease term to your driving plans — a 36-month lease on a vehicle used for 15,000 miles per year with a 12,000 mile cap will result in expensive overage charges.

Frequently Asked Questions

Is it better to lease or buy a car?

It depends on your goals. Leasing makes sense if you prefer lower monthly payments, want to drive a new car every 3 years, and do not exceed the annual mileage limit. Buying makes sense if you drive high mileage, want to build equity, or plan to keep the vehicle long-term. The Lease vs Buy Calculator shows the true net cost for your specific situation.

What is a good money factor for a car lease?

A good money factor is close to the manufacturer buy rate, which changes monthly. Multiply the money factor by 2,400 to convert to APR for comparison. Anything below 0.00200 (equivalent to ~4.8% APR) is excellent. Above 0.00400 (~9.6% APR) is high. You can find current money factors on manufacturer incentive sheets or through automotive lease forums.

What does residual value mean in a lease?

Residual value is the predicted worth of the vehicle at the end of the lease, set by the manufacturer or leasing company as a percentage of the original MSRP. A higher residual means you only finance a smaller portion of the car value, resulting in lower monthly payments. Strong-residual vehicles produce better lease deals.