Calculator

FIRE Calculator

Calculate your financial independence target and how long it could take to reach it.

Inputs

Calculate now

Display currencyChoose the currency symbol for entered amounts and results. No exchange-rate conversion is applied.
UnitsChoose metric, US or UK units for distance, area, volume and car consumption.
Your available monthly income after taxes and deductions.
All recurring expenses relevant for your FIRE target.
For example ETFs, securities or other long-term invested capital.
Simplified average return during the accumulation phase.
4% is a common rule of thumb, but not a guarantee.
Optional buffer for inflation, insurance, health or unexpected costs.
Guidance

FIRE Calculator:

Use the result as decision support, not as individual advice. For finance topics, scenarios, total cost, risk, term and personal affordability matter.

How to use the result better

  • Calculate conservative, realistic and optimistic cases.
  • Look beyond monthly values to total cost or final value.
  • Keep safety buffers before making a decision.

Common mistake

One attractive figure can mislead when fees, taxes, rate changes, volatility or long terms are ignored.

Is this financial advice?

No. It is an orientation tool and does not replace individual financial, tax or investment advice.

Why are scenarios so important?

Small changes in interest, return, term or costs can change the result significantly.

Next steps

Useful calculators to continue

After the result, related calculators help you understand costs, alternatives and next steps more clearly.

GuideFinancial independence: target wealth, savings rate and withdrawal rateThe key points are costs, risks and monthly impact. Do not rely on one isolated value. Compare multiple scenarios to understand the effect of budget, comparison and long-term effects.
Plan betterCompare costs, returns and monthly burdens more clearly.
Check alternativesRelate results to saving, loans, income or investing.
Decide with confidenceUse multiple calculators before making financial decisions.

How to use the result well

  • Compare several scenarios: Change the key values and check how much the result changes.

  • Use related calculators: Decisions often become clearer when you also calculate costs, timeframes or alternatives.

Formula

How the result is calculated

FIRE number = annual expenses ÷ withdrawal rate

Example

Worked example

With €30,000 annual expenses and a 4% withdrawal rate, the FIRE number is €750,000.

FAQ

Frequently asked questions

What does FIRE mean?

FIRE means Financial Independence, Retire Early.

Is the 4% rule safe?

No. It is a common rule of thumb, not a guarantee for every market, period or lifestyle.