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What this calculator does
Leasing means perpetual payments. Buying means payments eventually stop. This calculator compares the cumulative cost over time.
The math
Lease total = monthly lease × total months. Buy total = purchase price + maintenance × total months.
Worked example
A $350 lease over 10 years costs $42,000. Buying a $25,000 car and paying $100 monthly maintenance costs $37,000.
Why this matters
Big purchases create years of follow-up costs. This calculator helps you weigh the true price before you sign.
Methodology and transparency
This page publishes the exact formula used to compute the result, so you can verify it in a spreadsheet or check the assumptions against your own situation. The worked example uses the tool default inputs; change any number and the result updates live in your browser. No data is sent or stored.
Common questions
Does this include resale value?
No. It compares cumulative cash out. A bought car still has residual value.
When is leasing better?
Leasing can make sense for business deductions or if you want a new car every few years without repair risk.