Is this calculation free and private?

Yes, 100% of calculations execute locally in your web browser. No inputs or personal data are stored or transmitted.

What do I need to enter?

Just Desired Annual Living Expenses in Retirement, Safe Withdrawal Rate, Current Invested Net Worth and Annual Savings Added. Every field has a sensible default you can start from.

Is my data uploaded anywhere?

No. The calculation runs in your browser with JavaScript — nothing you type is sent to a server or stored.

Does it work on a phone?

Yes. The layout adapts to small screens and needs no app or signup.

FIRE Number & Retirement Calculator

Calculate your Financial Independence Retire Early (FIRE) target nest egg based on the 4% safe withdrawal rule.

100% free
Private in browser
No signup
No watermarks

Desired Annual Living Expenses in Retirement ($)

Safe Withdrawal Rate (%)

Current Invested Net Worth ($)

Annual Savings Added ($)

Target FIRE Nest Egg ($)

1,500,000

Remaining Savings Needed ($)

1,350,000

Estimated Years to FIRE (at 7% return)

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About FIRE Number & Retirement Calculator

Calculate your Financial Independence Retire Early (FIRE) target nest egg based on the 4% safe withdrawal rule. Enter Desired Annual Living Expenses in Retirement, Safe Withdrawal Rate and Current Invested Net Worth and the tool works out Target FIRE Nest Egg, Remaining Savings Needed and Estimated Years to FIRE straight away. Everything runs in your browser, so your data never leaves your device.

How to use FIRE Number & Retirement Calculator

Enter Desired Annual Living Expenses in Retirement, Safe Withdrawal Rate and Current Invested Net Worth.
Adjust the remaining options (Annual Savings Added) to match your case.
Read Target FIRE Nest Egg, Remaining Savings Needed and Estimated Years to FIRE in the results panel — copy or download what you need.

Key features

Shows Target FIRE Nest Egg ($)
Shows Remaining Savings Needed ($)
Shows Estimated Years to FIRE (at 7% return)
4 adjustable inputs, results update as you type
No signup, no limits

Frequently asked questions

Is this calculation free and private?: Yes, 100% of calculations execute locally in your web browser. No inputs or personal data are stored or transmitted.
What does the FIRE Number & Retirement Calculator give me?: It works out Target FIRE Nest Egg, Remaining Savings Needed and Estimated Years to FIRE, updating live as you change the inputs.
What do I need to enter?: Just Desired Annual Living Expenses in Retirement, Safe Withdrawal Rate, Current Invested Net Worth and Annual Savings Added. Every field has a sensible default you can start from.
Is my data uploaded anywhere?: No. The calculation runs in your browser with JavaScript — nothing you type is sent to a server or stored.
Does it work on a phone?: Yes. The layout adapts to small screens and needs no app or signup.

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