Calculator
Example Data Table
| Input | Example value |
|---|---|
| Vehicle price | $38,000.00 |
| Rebate | $1,000.00 |
| Comparison horizon | 36 months |
| Lease term | 36 months |
| Lease money factor | 0.00210 |
| Residual value | 58% |
| Annual mileage allowance | 12,000 miles |
| Expected annual miles | 14,000 miles |
| Buy loan term | 60 months |
| Buy interest rate | 6.25% |
| Annual depreciation | 15% |
Formula Used
Lease adjusted cap cost = (Vehicle price - rebate - lease down payment) + acquisition fee
Lease residual value = Vehicle price × residual percentage
Lease depreciation fee = (Adjusted cap cost - residual value) ÷ lease term
Lease finance fee = (Adjusted cap cost + residual value) × money factor
Lease base payment = Depreciation fee + finance fee
Lease monthly payment with tax = Lease base payment + monthly tax
Lease total cost = Upfront costs + monthly costs + mileage penalty + disposition fee
Loan payment = P × r ÷ (1 - (1 + r)-n)
Estimated buy value = Vehicle price × (1 - annual depreciation rate)years held
Buy equity = Estimated vehicle value - remaining loan balance
Buy net cost = Down payment + payments made + operating costs - equity
How to Use This Calculator
Enter the vehicle price, rebate, tax rate, and registration fees first.
Set the comparison horizon in months. This should match your planned ownership period.
Fill in the lease details. Add the money factor, residual percentage, fees, mileage allowance, and monthly running costs.
Fill in the buy details next. Add the loan term, interest rate, depreciation estimate, resale override if known, and monthly running costs.
Press calculate. The result appears below the header and above the form.
Review the monthly cost, end value, total net cost, and lower cost option.
Use the CSV or PDF buttons to download the current report.
Lease vs Buy Vehicle Cost Guide
Why this comparison matters
A lease vs buy vehicle calculator helps you compare real car ownership costs. It goes beyond the sticker price. It measures financing, taxes, fees, depreciation, mileage limits, and resale value. A lower monthly payment can look attractive. The total cost can still be higher over time. That is why a full comparison is important before signing.
What leasing usually offers
Leasing often gives drivers a lower payment and a newer vehicle. It can work well for short ownership periods. It may also reduce repair risk during the contract term. However, lease costs can rise when mileage runs high. Upfront fees, disposition charges, and excess wear costs can also reduce the savings. Leasing does not build ownership equity.
What buying usually offers
Buying usually creates long term value when you keep the vehicle for several years. Each payment reduces the loan balance. The vehicle may still retain resale value after the comparison period ends. That remaining value becomes equity. Buying can cost more per month at first. It may still win on total net cost if depreciation is reasonable and the vehicle is kept longer.
Key numbers to review
Focus on five areas. Review monthly payment, upfront cash, annual mileage, estimated resale value, and total net cost. Insurance and maintenance also matter. They affect the monthly budget. The comparison horizon matters too. A three year plan can favor leasing. A five year or longer plan can favor buying. The best answer depends on your driving habits and cash flow needs.
How to make a better decision
Use realistic mileage and resale assumptions. Do not guess too low. Include fees and taxes every time. Compare both the monthly impact and the total cost over your holding period. Then weigh flexibility, warranty coverage, and ownership goals. This calculator gives a practical side by side estimate so you can choose the option that better fits your budget and driving pattern.
FAQs
1. What does this calculator compare?
It compares lease and buy costs over the same time period. It includes payments, taxes, fees, insurance, maintenance, mileage charges, depreciation, remaining balance, and estimated equity.
2. Why can leasing look cheaper each month?
Leasing usually charges for expected depreciation during the contract period, not the full vehicle price. That often lowers the payment, but it does not create ownership value.
3. Why does mileage matter so much in a lease?
Lease contracts include mileage limits. If you exceed them, you may owe a per mile charge. High annual driving can make leasing much more expensive.
4. How is buy equity calculated?
Equity equals estimated vehicle value minus the remaining loan balance. Positive equity lowers your net ownership cost because you still own value at the end.
5. Should I use the resale value override field?
Yes, when you have a realistic trade in or resale estimate. It gives a more customized buy result than using a general annual depreciation assumption.
6. Does this include insurance and maintenance?
Yes. Both lease and buy sections include monthly insurance, maintenance, and other operating costs. That creates a fuller ownership cost comparison.
7. When is leasing often a better fit?
Leasing often fits drivers who want a newer vehicle, lower monthly payments, shorter ownership periods, and mileage that stays within contract limits.
8. When is buying often a better fit?
Buying often fits longer ownership periods, higher mileage, stronger resale value, and drivers who want equity instead of returning the vehicle later.