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FIRE (Financial Independence, Retire Early) Calculator

Finance
5.0(0)

Estimate how much you'll have at your target retirement age, how much you need (based on a safe withdrawal rate), the surplus or shortfall, and the required savings rate to reach your FIRE goal. Handles inflation, expected returns, and contributions.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Current age, Target retirement age, Current invested savings, Annual contribution (invested each year), Expected annual return (pre-retirement), Expected annual return (post-retirement), Expected annual inflation rate, Current annual expenses, and Safe withdrawal rate (SWR) in the units shown.

Step 2

Read Inflation rate (decimal), Pre-retirement return (decimal), Years until retirement, Future value of annual contributions at retirement, Future value of current savings at retirement, Estimated annual expenses at retirement (inflation adjusted), Estimated total nest egg at retirement, Required retirement nest egg (based on SWR), Years of retirement expenses covered by estimated nest egg (ignores returns), Required annual contribution to reach required nest egg, Surplus (positive) or shortfall (negative) compared to required nest egg, and Required monthly contribution (approx.) in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Typical saver (default)

Current age: 30 years; Target retirement age: 65 years; Current invested savings: 20,000 dollars; Annual contribution (invested each year): 12,000 dollars; Expected annual return (pre-retirement): 6 percent; Expected annual return (post-retirement): 4 percent; Expected annual inflation rate: 2.5 percent; Current annual expenses: 40,000 dollars; Safe withdrawal rate (SWR): 4 percent

Inflation rate (decimal): 0.025; Pre-retirement return (decimal): 0.06; Years until retirement: 35 years; Future value of annual contributions at retirement: 1,337,217.358 dollars; Future value of current savings at retirement: 153,721.7358 dollars; Estimated annual expenses at retirement (inflation adjusted): 94,928.20744 dollars; Estimated total nest egg at retirement: 1,490,939.094 dollars; Required retirement nest egg (based on SWR): 2,373,205.186 dollars; Years of retirement expenses covered by estimated nest egg (ignores returns): 15.7059649 years; Required annual contribution to reach required nest egg: 19,917.33149 dollars; Surplus (positive) or shortfall (negative) compared to required nest egg: -882,266.0918 dollars; Required monthly contribution (approx.): 1,659.777624 dollars

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Important

Treat this output as a planning estimate and confirm rates, tax rules, and contract terms before making financial decisions.