Comprehensive Guide
Learn more in our Loans & Mortgage Guide.
How it works
auto lease vs buy calculator takes your inputs and produces total buy cost, total lease cost, monthly buy payment, savings (better option). Compare leasing versus buying a car with total cost analysis over your ownership period. You provide 7 inputs: Vehicle Price (currency, in dollars) (default: 35000 dollars); Down Payment (currency, in dollars) (default: 3000 dollars); Loan Interest Rate % (percent, in percent) (default: 5.5 percent); Loan Term (months) (number) (default: 60); Monthly Lease Payment (currency, in dollars) (default: 350 dollars); Lease Term (months) (number) (default: 36); Residual Value % (percent, in percent) (default: 55 percent). The calculator returns 4 outputs: Total Buy Cost (a secondary output); Total Lease Cost (a secondary output); Monthly Buy Payment (the primary result); Savings (Better Option) (a secondary output). Loans and mortgages are amortized instruments where the split between interest and principal shifts every month. Understanding the total cost of borrowing — not just the monthly payment — is the difference between a sustainable debt load and one that erodes your net worth over time. This calculator reveals the full amortization picture. With the default values, monthly buy payment is computed from the interaction of every input field — change any one of them and the result updates immediately, so you can stress-test different scenarios without re-entering the whole form. Adjust the inputs to match your real financial situation. The defaults are realistic starting points, but every person's circumstances differ — your actual income, expenses, rates, and timelines will produce a different answer. Use the tool iteratively: start with the defaults, then change one variable at a time to see which factor has the largest impact on your outcome.Tips
- Start with the default values to see a baseline result, then change one input at a time to understand which factor matters most for your outcome.
- Replace every default with your actual number — estimates and rules of thumb produce estimates, not answers. Pull your real figures from pay stubs, statements, or account dashboards.
- Compare the total cost of borrowing, not just the monthly payment. A lower monthly payment often means paying thousands more in interest over the life of the loan.
Frequently asked questions
Is leasing always cheaper monthly?
Leasing is usually 30-40% less per month, but you never own the car. Buying builds equity and is cheaper long-term.
What does the auto lease vs buy calculator calculate?
It takes vehicle price, down payment, loan interest rate %, loan term (months), monthly lease payment, lease term (months), residual value % as inputs and computes total buy cost, total lease cost, monthly buy payment, savings (better option). The primary output is monthly buy payment. Compare leasing versus buying a car with total cost analysis over your ownership period.
How accurate are the calculator results?
The math is exact — the same formulas a financial professional would use by hand. The precision of the output depends entirely on how realistic your inputs are. Use your actual numbers rather than estimates when possible. The defaults are reasonable starting points, but your real income, rates, and timeline will produce a different result.