What is the lease vs buy car calculator — which is cheaper??
In short
Buying a car is usually cheaper long-term: over 5 years on a $35,000 vehicle ($5,000 down, 6.5% loan) buying's all-in cost is about $27,300 after resale value, versus roughly $32,100 for back-to-back $450/month leases — buying saves about $4,800. Leasing narrows the gap only with high lease-end residuals or unusually strong investment returns on the cash you keep.
Compares the true 5–10 year net cost of buying a car (loan payments plus the opportunity cost of your down payment, minus resale value) vs. leasing (all lease payments, a new down payment each lease term, and the opportunity cost of those down payments).
How to use this calculator
- 1Enter vehicle price, down payment, loan rate, and loan term.
- 2Enter monthly lease payment, lease term, and lease down payment.
- 3Enter residual value % (shown on your lease quote).
- 4Set years to analyze and expected investment return on saved cash.
The formula
- buyNet
- — Total paid buying + down-payment opportunity cost − resale value
- leaseNet
- — All lease payments + a down payment per lease term + their opportunity cost
- oppCost
- — What money paid up front would have earned if invested
Worked example
The scenario
$35,000 car, $5,000 down, 6.5% loan / 60 months, vs $450/mo lease / 36 months, 55% residual, 7% investment return, 5-year horizon.
The result
Buy net cost ≈ $23,400 (after $12,500 resale). Lease total ≈ $29,000. Buying saves ~$5,600 over 5 years.
Common use cases
- Decide between leasing your next car vs. financing it.
- Compare the true cost of a lease deal vs. a purchase offer.
- Factor in opportunity cost of the down payment.
- Model how long you need to keep a car for buying to beat leasing.
Limitations & assumptions
- Does not include insurance, maintenance, registration, or mileage overage fees.
- Residual value and depreciation assumptions are estimates — actual resale varies by make/model.
- Lease terms vary; some include free maintenance (raises lease value).
- Tax treatment of lease vs. buy differs for self-employed and business use.
Frequently asked questions
Is it always better to buy than lease?
What is the residual value on a lease?
Should I put money down on a lease?
How do I calculate a car lease payment?
What mileage limit should I choose on a lease?
Disclaimer: KalkWise calculators are provided for general informational and educational purposes only and do not constitute financial, investment, tax, or legal advice. Results are estimates based on the figures you enter and the assumptions described above. Actual outcomes will vary. Consult a qualified professional before making financial decisions.