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RealityMath

Car Lease vs. Buy Calculator

Enter your vehicle purchase and lease assumptions to see the true 5-year wealth impact of financing versus leasing, and compare lease versus buy costs head-to-head in a direct cost comparison.

Optimization Success

Finance Verdict: Ownership Wins

By choosing to finance this vehicle over a lease, you project a $0 net wealth advantage over a 5-year horizon.

OWNERSHIP NET COST

$0

+$0 Equity

LEASE NET COST

$0

$0 Equity

Equity vs. Cumulative Expense

5-Year Projected Horizon

OWNERSHIP
LEASE
Month 0 Month 60

Hidden Cost Analysis

Ownership (5yr)
Lease (5yr)

Depreciation

-$0

Residual Risk

$0 (None)

Interest Paid

$0

Finance Fee

Hidden in Pay

Opportunity Cost

-$0

Opportunity Cost

-$0

Total Sunk Cost

$0

Total Sunk Cost

$0

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RealityMath Transparency Note

Our Depreciation Engine assumes a 20% drop in value the moment you drive off the lot, followed by a 15% annual decay. This represents the "hidden drain" that most financing calculators ignore. For the lease, we assume you walk away at the end of the term with zero equity but also zero resale risk.

The Market Opportunity Cost is calculated based on a 7% annual return on your down payment and monthly cash flow differences. If the lease is cheaper monthly, we assume that surplus is invested. This provides a holistic "Net Wealth" view rather than just cash-out-the-door.

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