Coast FIRE Calculator

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Everyone
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Everyone
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About this app

The Coast FIRE Calculator is designed for individuals and couples planning their path to financial independence. Coast FIRE is the milestone where your existing investments are projected to grow enough to fund your retirement by your target age, without needing further contributions.
This application provides a comprehensive suite of tools to help you understand your financial trajectory through standard mathematical models.
Key Features:

• Coast FIRE Calculation: Determine the exact amount you need invested today based on your retirement age, expected expenses, and historical return rates.
• Couples Planning Tool: A dedicated interface for joint retirement strategy. Input separate data for each partner and visualize your combined household growth.
• Investment Projections: View interactive charts that illustrate how your portfolio may perform over time through the power of compound interest.
• Scenario Analysis: Use "What-If" parameters to see how changing your monthly contributions or retirement age impacts your timeline.
• Safe Withdrawal Estimation: Calculate projected monthly income during retirement based on standard safe withdrawal rate models.
• Time-to-Coast Tracking: Estimate how many years remain until you reach your specific Coast FIRE milestone.
• Data Roadmap: Generate a structured summary of your calculations and milestones for easy review.

Privacy and Performance:

• Local Processing: All calculations are performed on your device. Your financial data is not stored or transmitted to external servers.
• Native Interface: Built with a modern, responsive UI for fluid interaction and real-time result updates.

Use the Coast FIRE Calculator to gain clarity on your long-term retirement goals and visualize the impact of your current saving strategies.
Updated on
Jul 28, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Device or other IDs
This app may collect these data types
Device or other IDs
Data is encrypted in transit
Data can’t be deleted

What’s new

First release of the Coast FIRE Calculator app.