Auto Buy Versus Lease Calculator
Deciding between buying or leasing a car can be complex. Our auto buy vs lease calculator helps you compare monthly payments, total costs, and savings for both options. By entering key details like vehicle price, down payment, interest rate, and lease terms, you'll get a clear comparison to make an informed decision.
How to Use This Calculator
Using our auto buy vs lease calculator is simple:
- Enter the purchase price of the vehicle you're considering
- Input your desired down payment amount
- Provide the loan interest rate and term
- For leasing, enter the monthly lease payment and lease term
- Click "Calculate" to see the comparison
The calculator will display monthly payments for both options, total costs over the loan/lease term, and the difference in costs between buying and leasing.
Buying vs Leasing: Key Differences
When deciding between buying and leasing a car, consider these key differences:
Buying a Car
- Ownership: You own the vehicle outright after paying off the loan
- Depreciation: You bear the full cost of depreciation
- Customization: You can modify the car as you wish
- Resale Value: You can sell the car when you want
- Tax Benefits: Potential tax deductions for business use
Leasing a Car
- Ownership: You don't own the car - the lessor does
- Depreciation: The lessor bears most of the depreciation cost
- Customization: Limited modifications allowed
- Resale Value: You must return the car at lease end
- Tax Benefits: Fewer tax advantages than buying
Buying is generally better if you want to keep the car long-term, can afford the down payment, and want to customize it. Leasing is better if you want lower monthly payments, don't want to be tied to one car, or can't afford a large down payment.
Calculator Formulas
The calculator uses these formulas to determine monthly payments and total costs:
Buying (Loan Payment)
Monthly payment = P × (r(1+r)^n) / ((1+r)^n - 1)
Where:
- P = Principal loan amount (Purchase price - Down payment)
- r = Monthly interest rate (Annual rate / 12)
- n = Number of payments (Loan term in months)
Leasing
Monthly payment is provided directly by the user
Total lease cost = Monthly payment × Lease term in months
The calculator then compares these values to show the difference between buying and leasing.
Worked Example
Let's compare buying and leasing a $30,000 car with these assumptions:
| Factor | Buying | Leasing |
|---|---|---|
| Down payment | $3,000 | $1,500 |
| Interest rate | 4.5% | N/A |
| Loan term | 5 years | N/A |
| Monthly payment | $452.34 | $350 |
| Total cost | $27,140.40 | $21,000 |
In this example, leasing saves $6,140.40 over the 5-year period. However, you would need to return the car at the end of the lease term.