FIRE Calculator
Calculate your early retirement savings target based on the 25x rule.
Calculation Parameters
Specify your inputs below.
Calculated Result
Expert Tip
The 4% rule implies you need an investment portfolio equal to 25 times your annual living expenses to retire early.
How this Calculator Works
This calculator computes your Financial Independence, Retire Early (FIRE) number. It uses the 25x rule (based on the Trinity study 4% safe withdrawal rate) to determine the capital needed to support early retirement.
Formula & Methodology
Step-by-Step Calculation Example
Here is a step-by-step example showing how the calculations are performed:
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Detailed Insights & Expert Guide
ℹ️ About this Calculation
This personal finance and wealth planning calculator evaluates net worth growth, debt payoff acceleration (Snowball/Avalanche), FIRE retirement target numbers, home mortgage affordability, and budget allocation based on CFP financial planning standards.
Variable Glossary
Personal Financial Data
Monthly expenses, annual salary, current savings balance, debt interest rates, employer 401k match %, or target retirement age.
Wealth Target Output
FIRE nest egg target ($), debt-free payoff date, emergency cushion months (3-6x), or monthly mortgage ceiling ($).
How to Calculate Step-by-Step
Step 1
Input your income sources, fixed/variable monthly household expenses, or loan principal balances.
Step 2
Set your desired withdrawal rate (e.g. 4% Trinity rule), loan APR %, or extra monthly principal contribution amount.
Step 3
Review calculated financial freedom timeline, interest savings from debt payoff strategies, or retirement accumulation trajectory.