Here’s the equation to calculate your FIRE number: Annual Expenses x 25 = FIRE Number. In other words, simply multiply your annual expenses by 25; some call this the 4% rule.

So if you think you'll need $50,000 per year in retirement, your FIRE number would be $1.25 million. However, it's important to note that the 4% rule was only intended to help your savings last 30 ...

Applying the rule of 25, his FIRE number is $1.25 million. To amass $1.25 million in 20 years, Marcos will need to invest about $2,255 a month, assuming an 8% return, to reach his goal.

If you want to retire early, you might want to consider the FIRE -- financial independence and early retirement -- approach. This movement has been gaining steam in recent years, as the views ...

Zhuang determined his Coast FIRE number using an online calculator from WalletBurst. The calculator considers your current age, retirement age, annual spending in retirement, and other factors.