Firecalc 121 Periods???

[CruiseChef]

When Firecalc refers to the 121 periods, what exactly does that mean?

I am guessing these are different scenarios of life events and expenses that could affect retirement spending?

Is this correct?

Thanks

 

[Andre1969]

That's 121 30 year historical periods that FireCalc has programmed into it. For instance, 1990-2020, 1989-2019, etc. Basically, you put in your parameters (starting portfolio, yearly withdrawal rate, etc) and it back-tests how that scenario would have performed, it you had retired in 1990, 1989, 1988, etc, and whether or not it would have succeeded at the end of 30 years.

If you pick a shorter time span, you'll get more cycles. For instance, a 20 year span gives you 131 cycles. A longer time span will give you fewer cycles. A 40 year span will give you 111 cycles.

 

[REWahoo]

When Firecalc refers to the 121 periods, what exactly does that mean?

You can find the answer to this and many other questions here: FIRECalc - How does it work?