Fat FIRE Calulcator

Visualising the amount needed for a comfortable, luxurious retirement is central to the concept of FAT FIRE.

Unlike other FIRE models, FAT FIRE aims for more than just covering basic living costs in retirement.

Once you reach the FAT FIRE milestone, you have enough for both essentials and life’s luxuries, such as travel and hobbies. Achieving this level of financial independence requires aggressive saving and strategic investing.

Below we have our FAT FIRE Calculator which will show you the power of compounding smart investments. 

FAT FIRE allows you to not just retire, but to retire well, enjoying a high quality of life without financial constraints.

For more detailed information on how FAT FIRE works and the necessary calculations, refer to my post: FAT FIRE – The Complete Guide to Financial Independence. Check it out now!

what is a fat fire
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Total Allocation: 100%
Please adjust your allocations to total 100%
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Start Budgeting Towards FIRE

Main Features Include:

  • Innovative dashboard showing your full financial picture
  • Templated scenarios for personal or household budgets
  • Debt organiser and repayment planner
  • Financial Freedom Calculator
  • Pensions and Investments Dashboard
  • Personal Net Worth Calculator

How To Use The FAT FIRE Calculator

If you’re looking to achieve financial freedom earlier than expected, Fat FIRE might be the perfect solution for you. The idea behind it is to generate enough wealth to support you in your retirement but also so you can live well.

I’ve made this Fat Fire calculator to show you how you can reach it. Entering the correct fields will allow you to visualise how close you are to FAT FIRE and what it would take to get to full FIRE. 

Follow this list below to understand how each section is interacting with each other.

  • Start by selecting your currency this calculator is made for US dollars, British Pounds and Euros.
  • Enter your current age and your end age
  • Then enter your current invested net worth so this is all the investments that you have in your ISA or elsewhere. This doesn’t include things like savings as the growth rate will be different.
  • You can then change how much your investments are going to grow using the investment growth rate slider.
  • After this add in your expected annual spending in retirement this number should be what you need to live comfortably
  • You also need to add your post tax salary and current annual expenses
  • Then set the inflation rate, the average is 2.5-3%.
  • And lastly, your safe withdrawal rate which most experts suggest to be around 4%. 

Once you had followed all of these steps you will be presented with the graph below. 

This allows you to see precisely when you will reach Fat Fire. If you enter an amount too low the graph will also tell you what adjustments need to be made in order for you to reach it.

There is a full fire number line added in so you can see the difference between Fat FIRE and FullFIRE.

 You’ll notice these numbers and graphs will change by what you select so you will easily be able to work out how much you need to invest. 

The point on the graph where the two lines meet is your Fat FIRE number. You’ll then be told the length it takes to get you there.

Why does inflation affect FAT FIRE?

Inflation is a crucial factor to consider in the context of FAT FIRE as well. While you may have accumulated enough to enjoy a luxurious retirement, inflation could erode the purchasing power of your savings, affecting your ability to maintain a high quality of life.

For instance, if you’ve reached the FAT FIRE milestone and inflation rises unexpectedly, your once-ample nest egg may no longer suffice for both basic and luxury expenses.

To mitigate the impact of inflation on your FAT FIRE goals, it’s essential to build inflation safeguards into your investment strategy. This could include diversifying into assets known for their inflation-resilient characteristics, such as real estate, or inflation-indexed bonds.

By actively managing the impact of inflation, you can better ensure that your FAT FIRE objectives remain attainable, allowing you to enjoy the luxurious retirement lifestyle you’ve planned for.

What else do I need to consider about FAT Fire?

Several other factors can affect Coast FIRE, including:

  1. Market Volatility: Just like with Coast FIRE, fluctuations in the stock and bond markets can impact your FAT FIRE goals. Market downturns may reduce your net worth and, therefore, your ability to maintain a luxurious retirement lifestyle.
  2. Interest Rates: While FAT FIRE often relies on a diversified investment portfolio, shifts in interest rates can still affect your returns, particularly if you hold bonds. These shifts may necessitate adjustments in your investment strategy to continue aiming for a high-quality retirement.
  3. Life Expectancy: For those pursuing FAT FIRE, living longer than expected may require an even larger financial cushion to sustain a lavish lifestyle over an extended period.
  4. Health Care Costs: Elevated healthcare costs could eat into your FAT FIRE budget, affecting your capacity for discretionary spending on luxuries during retirement.
  5. Tax Laws: Changes in tax legislation could influence the effectiveness of your FAT FIRE plan, affecting how much of your savings will be available for the high standard of living you aspire to.

In summary, achieving FAT FIRE is influenced by numerous variables, from market volatility to health care costs.

To sustain a high-quality, luxurious retirement, it’s essential to build a plan that’s robust to these financial fluctuations and uncertainties.

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