These are general questions and answers about FI Calc and me, the creator.

I do not live in the United States. Can I use FI Calc?

I'd love for FI Calc to be an international calculator, but it's not there right now. There are a couple of things to consider if you live outside of the US:

  • The historical data for equities and bonds are based on US assets. Do you have access to these assets, or similar US-based assets?
  • Inflation in this calculator based on the Consumer Price Index, which is determined by the price of consumer goods in the US. It likely does not reflect historical inflation in other countries.
  • The historical values of the assets in this calculator are in USD. To convert these values to another currency would require knowing the exchange rate. Would it be appropriate to use the historical exchange rate, or something else?

If you have thoughts on how any of these issues might be resolved, please contact me!

How can I enter real estate into FI Calc?

You can use the Additional Income feature of FI Calc to support real estate.

If you have a rental property, you can specify the annual cashflow as recurring income for as long as you intend to own the home.

If you intend to sell the property, then you can add your earnings from the sell as additional income in the year that you sell.

If there are more features you need to help manage your real estate investments, please let me know.

About the Creator

Who created FI Calc?

My name is James. It's nice to meet you! I'm a designer and engineer in Silicon Valley who is interested in early retirement.

Are you retired?

Not yet! (as of April 2020)

Do you have a favorite withdrawal strategy?

Honestly, it changes. I'm drawn to simple withdrawal strategies that you can calculate on a piece of paper. Right now I like the Constant Dollar and Endowment Strategy.

What are your favorite early retirement blogs and resources?

I'm not particularly active in the FIRE community right now, but I listen to Paula Pant's podcast and read Mr. Money Mustache.

General Questions

What's the business model of FI Calc?

FI Calc does not currently earn any revenue.

Do you plan to monetize FI Calc?

There will always be a free version of FI Calc, and that free version will always include every feature that doesn't require a database.

One feature that I've considered adding are user accounts, which would allow you to save simulations. This feature requires a database, though, which would cost me a little bit of money.

If I do add this feature, then I would want to at least cover the cost of the database. The most likely turn of events is that I would introduce ads to FI Calc.

I'm still not sure if I should add user accounts. Would you find them useful? Let me know!

Where is FI Calc hosted?

Vercel (previously known as Zeit).

When was FI Calc created?

I started the project in 2018, although I didn't work on it much until 2020.

What technology is FI Calc built with?

FI Calc is a client-side React application. There is no server; all calculations are performed in the browser.