What this early retirement calculator does
This calculator finds your FIRE number. You enter your annual expenses and a withdrawal rate. The tool then divides one by the other. So you see the portfolio you need to retire. It is the savings that can fund your life. The result uses the currency you choose.
What the FIRE number is
FIRE means financial independence, retire early. The FIRE number is the pot you aim for. It is the savings that cover your spending. So once you hit it, work is optional. Its returns are meant to fund your costs. It is the goal of the FIRE plan.
How it is calculated
The tool takes your annual expenses. It divides them by the withdrawal rate. So a four percent rate means twenty-five times spending. Lower expenses cut the number. A higher rate cuts it too. The result is your FIRE number.
What the result tells you
The result shows your FIRE number. Spending of forty thousand at four percent needs one million. Higher expenses raise it. A lower rate raises it too. So it shows the pot you must build. It is only an estimate.
The annual expenses
Your annual expenses are what you spend a year. It is your real cost of living. Bigger expenses need a bigger pot. So this number drives the result. Use a full, honest yearly figure. It drives the entire result here. Enter your annual expenses.
The safe withdrawal rate
The withdrawal rate is the percent you draw yearly. It is the share you take from the pot. A higher rate needs a smaller pot. So this number sets how hard savings work. Many plans use around four percent. A lower rate is safer but needs more. Enter your safe withdrawal rate.
The four percent rule
The four percent rule is a common guide. It suggests drawing four percent each year. That is the same as twenty-five times spending. So it gives a quick savings target. It rests on long studies of markets. But it is a rule of thumb, not a promise. Adjust it to your own risk.
Your monthly spending
The tool also shows your monthly spending. It is your yearly expenses split over twelve. So forty thousand a year is about three thousand a month. This helps you sense the day-to-day need. It makes the big number feel real. Use it to sanity-check your budget.
How to use it
Enter your annual expenses first. Add your safe withdrawal rate. Read the FIRE number in your currency. Then try a lower rate. See how the target shifts. Compare a few spending levels. Use it to set a savings goal.
The limits of this calculator
This tool comes with limits. It uses one rate and one figure. It assumes steady spending and returns. It ignores tax, inflation, and fees. It does not promise the pot will last. So let it guide you, not bind you. So check your plan with care.
A final tip
Use this to set a clear FIRE number. Remember it rests on big assumptions. Track your real yearly spending. Pick a withdrawal rate you trust. Revisit the target as life changes. Do not treat it as a guarantee. A careful plan guides your path.