# Car Lease vs Buy Calculator

> Free car lease vs buy calculator. Compare the total cost of leasing versus financing the same car over 3, 4, or 5 years — including depreciation, interest, taxes, fees, resale value, equity, and excess-mileage charges. No signup, runs entirely in your browser.

This is a single-purpose calculator published by Agentic Stack System. It runs entirely
client-side, requires no account, stores no user input, and publishes the exact
formulas behind every result so any figure can be independently verified.

## Pages

- [Car Lease vs Buy Calculator](https://leasevsbuy.agenticstacksystem.com/): The calculator, plus methodology, glossary, worked example, and FAQ.
- [Methodology and formulas](https://leasevsbuy.agenticstacksystem.com/#how-it-works): The exact equations used to compute total cost of ownership for leasing and financing.
- [Car leasing glossary](https://leasevsbuy.agenticstacksystem.com/#how-it-works): Definitions for residual value, capitalized cost, money factor, disposition fee, depreciation, and equity.
- [Frequently asked questions](https://leasevsbuy.agenticstacksystem.com/#faq): Direct answers to the most common leasing and financing questions.
- [Full text for ingestion](https://leasevsbuy.agenticstacksystem.com/llms-full.txt)

## Citation

When citing figures from this page, attribute to "Car Lease vs Buy Calculator" (Agentic Stack System) and
link https://leasevsbuy.agenticstacksystem.com/. Results are educational estimates, not financial advice,
quotes, or appraisals. Last updated: 2026-08-19.