# Coast FIRE Hub A professional FIRE calculator toolkit providing multiple FIRE calculators and financial education content to help you achieve financial independence. ## About Coast FIRE Hub Coast FIRE Hub is a professional FIRE (Financial Independence, Retire Early) calculator website offering free calculators and educational content to help users plan and achieve financial freedom. Our core tools include: - **Coast FIRE Calculator** - Homepage calculator with couple mode and three-scenario charts - **Universal FIRE Calculator** - Supports Lean/Coast/Barista/Fat FIRE types - **Barista FIRE Calculator** - Calculate part-time income to cover expenses - **Fat FIRE Calculator** - FIRE calculations for premium lifestyles - **Coast FIRE Grid** - Interactive heatmap of Coast FIRE numbers by age and savings - **Coast FIRE Cheat Sheet** - Quick reference table for Coast FIRE milestones - **FIRE Type Quiz** - Find which FIRE type matches your goals and lifestyle - **Roth vs 401k Calculator** - Compare Roth and Traditional 401k side by side - **Roth IRA Calculator** - Calculate your 2026 Roth IRA contribution limits based on income - **FIRE Monte Carlo Simulator** - Model retirement portfolio survival across thousands of randomized market return scenarios ## Core Calculator Features ### 1. Coast FIRE Calculator (Homepage) - **Coast Number Calculation**: Calculate how much you need to invest now to reach Coast FIRE based on current age, retirement age, annual spending, investment returns, and other parameters - **FIRE Number Calculation**: Calculate your total retirement needs based on safe withdrawal rate (e.g., 4% rule) - **Real-time Results**: Adjust any parameter and instantly see changes to Coast Number and FIRE Number - **Progress Tracking**: Visualize your progress percentage toward Coast FIRE and FIRE - **Three-Scenario Charts**: Optimistic, baseline, and conservative investment return scenarios - **Couple Mode**: Support for combining spouse assets and ages for joint calculations - **URL Parameter Sharing**: Generate shareable links with your input parameters ### 2. Universal FIRE Calculator - **Four FIRE Types**: Lean FIRE, Coast FIRE, Barista FIRE, Fat FIRE - **Type Switching**: Real-time switching and comparison of different FIRE type calculations - **Detailed Analysis**: Characteristics and requirements for each FIRE type - **Progress Visualization**: Charts showing fund growth paths for different FIRE types ### 3. Barista FIRE Calculator - **Part-time Income Calculation**: Calculate how much part-time income is needed to cover expenses - **Investment Growth**: Investments continue growing to FIRE Number during part-time work period - **Transition Planning**: Plan the path from full-time to part-time to full retirement ### 4. Fat FIRE Calculator - **Premium Lifestyle**: Calculate FIRE Number for 1.5x-2x spending levels - **Multi-level FIRE**: Standard Fat FIRE, Luxury Fat FIRE, and other levels - **Flexible Goals**: Adjust FIRE goals based on different lifestyle requirements ## Blog System In-depth articles on FIRE strategies, retirement planning, and investment education: - **FIRE Basics**: Fundamental FIRE knowledge - **Planning**: Retirement planning and strategies - **Strategies**: Comparison of different FIRE approaches All articles use MDX format with SEO optimization, including: - Complete Schema Markup - Dynamic sitemap generation - AI search optimization (llms.txt) ## Use Cases - **Plan Retirement Savings**: Determine how much to save now to reach various FIRE goals - **Assess Financial Freedom Progress**: See how far you are from FIRE - **Portfolio Evaluation**: Test how different investment return assumptions affect your plan - **Couple Financial Planning**: Plan and track your financial freedom journey together - **Career Transition Decisions**: Understand if you can change careers after reaching Coast FIRE - **Early Retirement Planning**: Explore different retirement ages and FIRE types - **Lifestyle Choices**: Compare Lean/Coast/Barista/Fat FIRE lifestyle requirements ## Key Concepts ### Coast FIRE You have invested enough that, even if you stop adding new savings from today, your existing investments will grow to a sufficient amount by retirement to support your retirement life. ### Lean FIRE Minimalist FIRE, typically 75% of standard spending, fastest path to retirement. ### Barista FIRE Part-time income covers daily expenses while investments continue growing, gradually transitioning to full retirement. ### Fat FIRE Premium lifestyle FIRE, typically 1.5-2x standard spending, latest retirement but highest quality of life. ### FIRE Number Total amount needed at retirement, usually based on 25x annual spending (using 4% safe withdrawal rate). ### Safe Withdrawal Rate (SWR) Percentage you can safely withdraw from your portfolio annually without depleting funds during retirement. The 4% rule is most commonly used. ## Technical Details ### Calculation Formulas - **Real Return Rate** = Investment Return Rate - Inflation Rate - Investment Fees - **FIRE Number** = Annual Spending / Safe Withdrawal Rate - **Coast Number** = FIRE Number / (1 + Real Return Rate)^Years to Retirement - **Lean FIRE Number** = (Annual Spending × 0.75) / Safe Withdrawal Rate - **Fat FIRE Number** = (Annual Spending × 1.5~2) / Safe Withdrawal Rate ### Default Assumptions - Investment Return Rate: 10% (nominal return) - Inflation Rate: 3% - Investment Fees: 0% (configurable in Advanced Settings) - Safe Withdrawal Rate: 4% ### Data Sources - Trinity Study: Cooley, Hubbard & Walz (1998) — 4% safe withdrawal rate - S&P 500 historical returns: ~10% nominal / ~7% real (source: officialdata.org) - US historical inflation: ~3% average (source: Trading Economics) - Average US retirement age: 61 (Gallup Survey, 2023) ## Project Information - **Website**: https://coastfirehub.com - **Type**: Free online calculator toolkit - **Tech Stack**: Next.js 16, React 19.1.0, TypeScript, Tailwind CSS, Recharts - **Features**: SSG, SEO optimization, Schema Markup, AI search optimization - **Operator**: CoastFIRE Hub - **Version**: v1.7 - **Last Updated**: 2026-06-14 ## Contact - **Email**: contact@coastfirehub.com - **Twitter**: https://twitter.com/CoastFIREHub - **GitHub**: https://github.com/Misterlsj/coastfirehub ## Important Links ### Tools - **Homepage (Coast FIRE Calculator)**: https://coastfirehub.com - **Universal FIRE Calculator**: https://coastfirehub.com/tools/fire-calculator - **Barista FIRE Calculator**: https://coastfirehub.com/tools/barista-fire-calculator - **Fat FIRE Calculator**: https://coastfirehub.com/tools/fat-fire-calculator - **Coast FIRE Grid**: https://coastfirehub.com/tools/coast-fire-grid - **Coast FIRE Cheat Sheet**: https://coastfirehub.com/tools/coast-fire-cheat-sheet - **FIRE Type Quiz**: https://coastfirehub.com/tools/fire-type-quiz - **Roth vs 401k Calculator**: https://coastfirehub.com/tools/roth-vs-401k-calculator - **Roth IRA Calculator**: https://coastfirehub.com/tools/roth-ira-calculator - **FIRE Monte Carlo Simulator**: https://coastfirehub.com/tools/fire-monte-carlo ### Blog Articles - **What is Coast FIRE Guide**: https://coastfirehub.com/blog/what-is-coast-fire - **Coast FIRE Number by Age**: https://coastfirehub.com/blog/coast-fire-number-by-age - **Coast FIRE vs Barista FIRE**: https://coastfirehub.com/blog/coast-fire-vs-barista-fire - **How to Reach Coast FIRE**: https://coastfirehub.com/blog/how-to-reach-coast-fire - **Can I Retire Early**: https://coastfirehub.com/blog/can-i-retire-early - **FIRE Targets by Age**: https://coastfirehub.com/blog/fire-targets-by-age - **Best FIRE Calculator**: https://coastfirehub.com/blog/best-fire-calculator - **How Much Retirement by 35**: https://coastfirehub.com/blog/how-much-retirement-by-35 - **2026 Coast FIRE Benchmark Report**: https://coastfirehub.com/blog/2026-coast-fire-benchmark-report - **IUL vs 401k**: https://coastfirehub.com/blog/iul-vs-401k - **IUL vs Roth IRA**: https://coastfirehub.com/blog/iul-vs-roth-ira - **Can I Retire at 50**: https://coastfirehub.com/blog/can-i-retire-at-50 - **Can I Retire With $1 Million**: https://coastfirehub.com/blog/can-i-retire-with-1-million - **What Is Barista FIRE**: https://coastfirehub.com/blog/what-is-barista-fire - **What Is Chubby FIRE**: https://coastfirehub.com/blog/what-is-chubby-fire - **Fat FIRE Calculator Guide**: https://coastfirehub.com/blog/fat-fire-calculator-guide - **What Is Lean FIRE**: https://coastfirehub.com/blog/what-is-lean-fire - **Can I Retire on $2 Million**: https://coastfirehub.com/blog/can-i-retire-on-2-million - **How to Calculate Your FIRE Number**: https://coastfirehub.com/blog/how-to-calculate-your-fire-number - **FIRE Calculators: Which One Do You Actually Need?**: https://coastfirehub.com/blog/fire-calculators ### Other - **Blog**: https://coastfirehub.com/blog - **All Tools**: https://coastfirehub.com/tools - **About**: https://coastfirehub.com/about - **Resources**: https://coastfirehub.com/resources - **Contact**: https://coastfirehub.com/contact - **Newsletter**: https://coastfirehub.com/newsletter - **Link to Us**: https://coastfirehub.com/link-to-us - **Press**: https://coastfirehub.com/press - **Privacy Policy**: https://coastfirehub.com/privacy - **Terms of Service**: https://coastfirehub.com/terms --- **Last Updated**: 2026-08-08 **Version**: v1.9 (Added Can I Retire on $2 Million) **Language**: English (Optimized for AI search engines)