Lease vs Buy Car Calculator

About This Tool

The Lease vs Buy Car Calculator helps you make one of the biggest financial decisions in car shopping: should you lease or buy your next vehicle? This tool compares the total cost of each option over the same time period, accounting for monthly payments, down payments, loan interest, depreciation, and residual value so you can see which option truly costs less.

How the Comparison Works

For buying, the calculator uses the standard amortization formula to determine your monthly loan payment based on the car price, down payment, interest rate, and loan term. It then estimates the car's residual value after the comparison period using industry-standard depreciation rates (approximately 15% in year one and 10% each subsequent year). Your net cost of buying equals total payments minus the car's remaining value — because when you buy, you still own an asset worth money.

For leasing, the calculation is simpler: total cost equals your monthly lease payment multiplied by the lease term. At the end of the lease, you return the car and own nothing (unless you exercise a purchase option at the residual value). This makes comparison straightforward: which net cost is lower over the same time period?

When Buying Makes More Sense

Buying is typically the better financial choice if you plan to keep the car for 5 or more years, drive more than 12,000-15,000 miles per year (leases penalize excess mileage at $0.15-$0.25/mile), want to customize or modify the vehicle, or simply want to avoid the perpetual payment cycle of serial leasing. Once the loan is paid off, you drive payment-free while the car still has value.

When Leasing Makes More Sense

Leasing can be smarter if you prefer a new car every 2-3 years, drive fewer than 12,000 miles annually, want lower monthly payments and minimal down payment, value having the latest safety and technology features, or use the vehicle for business (lease payments may be tax-deductible). Leasing also shields you from depreciation risk — you never worry about resale value.

Hidden Costs to Consider

Both options carry costs beyond monthly payments. When buying, factor in higher insurance premiums for new cars, maintenance after the warranty expires, and potential negative equity if you trade in before the loan is paid off. When leasing, watch for acquisition fees ($500-$1,000), disposition fees ($300-$500), excess mileage charges, and wear-and-tear penalties at lease end. Gap insurance is typically included in leases but is an extra cost when buying.

The Total Cost of Serial Leasing

Many people compare one lease term to one loan term, but the real comparison should consider long-term behavior. If you lease a new car every 3 years for 9 years, you'll pay lease payments for the entire 9 years. A buyer who finances for 5 years and keeps the car for 9 years has 4 years of payment-free driving. Over a decade, serial leasing typically costs 30-50% more than buying and keeping a car long-term. This calculator helps you see that math clearly.