FIRE Calculator (Financial Independence Retire Early)

HLV Calculator

Estimate how much life insurance cover you really need based on your income.

















Concept: The FIRE (Financial Independence, Retire Early) Calculator helps you estimate the wealth (corpus) needed to retire early while sustaining your lifestyle. It is based on the 4% Rule, which assumes you can safely withdraw 4% of your corpus every year without running out of money for at least 25–30 years.
Main Formula
FIRE Corpus = Annual_Expenses / Safe_Withdrawal_Rate
Where
  • FIRE Corpus = Target wealth needed to retire
  • Annual_Expenses (AE) = Your yearly spending (inflation-adjusted)
  • Safe_Withdrawal_Rate (SWR) = Usually 4% (0.04)
Step-by-Step Manual Formulas
1. Calculate Annual Expenses (AE):
AE = Monthly_Expenses * 12
2. Adjust for Inflation (future expenses):
Future_AE = AE * (1 + i)^n
  • i = Inflation rate (annual ÷ 100)
  • n = Years till retirement
3. Compute FIRE Corpus using 4% Rule:
FIRE_Corpus = Future_AE / 0.04
Theory in Simple Words
  • 25x Rule: You need at least 25 times your annual expenses to retire early.
  • 4% Rule: Withdrawing 4% per year is considered sustainable.
  • Inflation Adjustment: Your expenses will rise in the future, so always calculate future annual expenses.
  • Investment Growth: Your corpus continues to grow post-retirement, which helps sustain withdrawals.