CarLeaseCalc exists to explain how lease payments work and to let you test numbers yourself. Our goal is clear, accurate, plain-language content that helps you ask better questions at the dealership.
Content is reviewed by Numerlyn LLC before it is published.
The formula on the calculator is the standard money factor method, and the steps are written out on the methodology page so you can check them. Examples use round invented numbers and are labeled as examples.
Where a figure depends on your contract (per-mile charges, fees, purchase prices) we tell you to check the contract rather than publish a typical value. We summarize agency pages in our own words and link to them by name; check the original for the current text.
If you see an error, email contactnumerlyn@gmail.com with the page address and what is wrong. We review reports and correct pages when we confirm a mistake. Pages carry no visible byline because the site is published by Numerlyn LLC as a company. Last reviewed October 2026.
We revisit pages when a rule or agency page they rely on changes, and when a reader reports a mistake. Each page that depends on an agency's guidance names the agency. The review date on a page shows when we last checked it, not that the underlying rules have stayed the same.