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    Expat FIRE Calculator: How Moving Abroad Changes Your FIRE Number

    This Expat FIRE calculator estimates how much you would need to reach financial independence at home versus in another country — and in that country’s capital or a higher-cost city. It uses country-level cost-of-living data to translate your current lifestyle into a realistic budget abroad, then applies a withdrawal rate to estimate your required nest egg in each case.

    Enter your expenses, home country, and destination below for your Expat FIRE summary.

    Expat FIRE inputs

    Based on this, your annual expenses are —.

    Expat FIRE results

    Home-country FIRE number: —

    Expat FIRE number in —: —.

    Expat FIRE number in the capital or another higher-cost city in —: —.

    Expat FIRE by country

    Estimated monthly expenses in —: —.

    Annual budget in destination: —.

    Expat FIRE number in destination: —.

    Expat FIRE in the capital city or another higher-cost city in the destination country

    Estimated monthly expenses in the capital / higher-cost city: —.

    Annual budget in capital / higher-cost city: —.

    Expat FIRE number in capital / higher-cost city: —.

    Assumptions: This tool uses relative cost-of-living differences between countries to translate your current monthly spending into an equivalent lifestyle abroad. Capital-city estimates assume roughly a 15% higher cost than the national average, a typical gap between major hubs and the rest of the country. All figures are in today’s dollars and based on your chosen withdrawal rate.

    Your Cost of Living & Expat FIRE Around the World

    Based on your home-country spending, withdrawal rate, and comfort buffer, this table estimates your monthly expenses and Expat FIRE number in each country in the dataset.

    Country Estimated monthly expenses Expat FIRE number

    Expat Time to FIRE Calculator

    Expat Time-to-FIRE Calculator

    Enter your current spending and savings, then compare how long it takes to reach FIRE at home vs. in another country or capital.

    Expat FIRE Inputs
    Based on this, your annual expenses are $48,000.
    Big yearly costs: flights home, school tuition, insurance, etc.
    Includes both countries and specific capitals (e.g., “Argentina, Buenos Aires”).
    Multiplier to reflect a more comfortable (or more modest) lifestyle abroad.
    Savings Inputs
    Details & assumptions
    4% is a common rule of thumb. Lower is more conservative (requires a larger FIRE number).
    Your Expat FIRE Projection

    At home in United States, you would need a FIRE portfolio of $—.

    Based on your current savings and monthly contributions, you could reach home-country FIRE in about —.

    In Thailand, your Expat FIRE number is $—.

    You could reach Expat FIRE in about —, with estimated monthly expenses of $— vs. $4,000 at home.

    Cost-of-living details used in this calculation

    Home-country benchmark COL for your household type: $— per month.

    Destination benchmark COL for your household type: $— per month.

    COL ratio (destination ÷ home): —.

    Assumptions: This tool uses your monthly budget and relative cost-of-living differences between countries/capitals and household types to translate your current lifestyle abroad. Time-to-FIRE estimates use Excel-style NPER with your nominal expected return and annual savings (12 × monthly savings), with both contributions and FIRE targets in nominal dollars (no inflation adjustment).
    Estimated monthly expenses & FIRE number across all destinations
    Based on your current home budget, household type, comfort buffer, and withdrawal rate, using the same cost-of-living data as the calculator above.
    Country / Capital Est. monthly expenses FIRE number

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    About A Brother Abroad

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    ABOUT THE AUTHOR

    Carlos Grider launched A Brother Abroad in 2017 after a “one-year abroad” experiment turned into a long-term life strategy. After 65+ countries and a decade abroad, he now writes about FIRE, personal finance, geo-arbitrage, and the real-world logistics of living abroad—visas, costs, and tradeoffs—so readers can make smarter global moves with fewer surprises. Carlos is a former Big 4 management consultant and DoD cultural advisor with an MBA (UT Austin) and Boston University’s Certificate in Financial Planning. He’s the author of Digital Nomad Nation: Rise of the Borderless Generation and is currently writing The Sovereign Expat.

    Click here to learn more about Carlos's story.