Skip to content
In All Webfinances
M1 Calculator

Goal Setter — what's your number?

Set your ideal monthly cost of living and find out how much wealth you need and how much to invest each month to get there.

How to use the FIRE Target

Estimate your ideal monthly living cost. Multiply by 12 and divide by 0.04 (Bengen rule). That's the portfolio target to live off passive income.

Best practices

Use your REAL cost of living, not an aspirational one. Review the target annually — inflation erodes purchasing power. Think in decades, not months.

Common mistakes

Underestimating healthcare and insurance. Forgetting taxes on passive income. Assuming a withdrawal rate above 4% (Bengen shows >4% reduces retirement longevity).

When it makes sense (and when it doesn't)

Useful for anyone planning a 10+ year horizon. Less useful if income is volatile or the timeframe is short. Always pair it with a solid emergency fund.

What does this mean?

This is the total wealth you need to live off the returns without touching the capital. The 4% rule (Trinity Study, 1998) says you can withdraw 4% per year without running out of money over 30 years.

Learn the theory

Coming soon: dedicated article.

Watch the tutorial

Coming soon: video tutorial.