FIRE Calculator at Age 40
FIRE calculator starting at 40: about 25 years to compound and a realistic timeline to financial independence.
Your savings, spending, and FIRE number are figured in your browser; nothing is sent to a server.Try: Current age=40, Retirement age=65, Current investments=50000, Annual contribution=12000, Annual spending in retirement=40000, Expected annual return=7, Safe withdrawal rate=4 → $1,000,000, 25 yrs, 65, $1,030,360
How to use
At 40 the runway is about 25 years. Catch-up contributions after 50 can give a late boost, but the core habit — invest steadily and let returns compound — is unchanged.
FAQ
Does starting younger really change the outcome?
Massively. Money invested at 25 has 40 years to compound; at 40 it has 25. The same monthly contribution can grow to far more simply because it starts earlier.
I started late — is FIRE still worth it?
Yes. Starting later means a shorter runway, so you may need a higher savings rate or a leaner target, but every year you invest still compounds. The calculator shows your realistic timeline.