FIRE calculator

[Max]

Some time ago, Vanguard Nest Egg Calculator was closed for no particular reason, and I have looked for an alternative. I have found FI Calc. It is a withdrawal success rate calculator run by a private person from US named James, which offers two interesting features:

• future pension payments can be taken into account; one can set how late they start after the early retirement date
• several dynamic withdrawal strategies can be tested (James himself prefers Vanguard Dynamic Spending)

Unlike Vanguard calculator, it operates with withdrawal sums in $, and not withdrawal rates in %.

 

[Baptiste Wicht]

Hi @Max

Thanks for sharing. This calculator looks well polished and has many features. And the dynamic withdrawal strategies are definitely nice to have.

On the other hand, it looks like it's doing only yearly simulations instead of monthly, which greatly reduces the number of simulations.

Shameless plug: I prefer my calculator

Advanced FIRE Calculator - The Poor Swiss

This advanced FIRE calculator offers many more features than the standard FIRE calculator. If you feel lost with all these features, you should start using

thepoorswiss.com

But it's definitely less polished.

 

[Max]

I like the pension feature a lot. It makes my safe withdrawal rate jump by 0,5 p.p.!

 

[Max]

On the other hand, it looks like it's doing only yearly simulations instead of monthly, which greatly reduces the number of simulations.

I have noticed that it is ca. 0,1 p.p. more "generous" than yours in the withdrawal rate calculation. Can it be due to yearly simulations?

 

[Baptiste Wicht]

I have noticed that it is ca. 0,1 p.p. more "generous" than yours in the withdrawal rate calculation. Can it be due to yearly simulations?

It could be. But it's very difficult to know where the differences come from. It could come from the data or from the code or from the way the simulation is ran.