About Coast FI Calculator
We are a small team of independent software engineers and personal finance researchers dedicated to building transparent, free tools for the FIRE community.
Our Mission & Transparency
When we first discovered the Financial Independence, Retire Early (FIRE) framework, it completely changed how we viewed our careers, money, and personal time. However, we quickly realized that most online calculators were buried underneath heavy paywalls, intrusive tracking ads, or aggressive pushes for high-fee financial products.
We built this standalone application to solve that problem. Our mission is simple: provide a lightning-fast, highly accurate dashboard that allows everyday savers to visual their financial paths using honest, inflation-adjusted data without the corporate fluff.
We do not track, store, or sell your personal financial data. Your slider values never leave your browser window.
Our engines rely strictly on empirical formulas, historical safe withdrawal data, and real market indices to ensure mathematically sound results.
We actively collaborate with active personal finance communities to frequently audit our codebases, metrics, and scripts.
How Our Team Works Together
Our team bridges the gap between clean web engineering and quantitative financial modeling. By blending modern front-end performance practices with rigorous mathematical constants, we guarantee that shifting a slider provides instant, pixel-perfect feedback without delaying your browser.
We maintain this platform as a collaborative, living asset. As macroeconomic variables, average inflation averages, and early retirement concepts change over the years, we continuously update our calculation models to reflect safe, accurate industry defaults.
Financial Disclosure & Disclaimer
While we specialize in developing reliable wealth-modeling software, we are not certified financial planners (CFPs) or registered investment advisors. The calculations and visualizations provided by this tool are designed exclusively for educational insight and broad scenario comparison. We highly advise consulting with a qualified professional before making major structural lifestyle changes or asset allocations.