Early retirement is a fun aspirational goal. Planning for retirement is challenging. One needs to make a set of assumptions for more than 30 years in the future.
Calculating how to generate retirement income from several accumulated income producing assets is not easy. Each of the assets would have a different expected return.
Engaging Data Post-Retirement Calculator
Most calculators optimize for the scenario of not running out of money. While being poor in retirement is a concern, we should also realize that we have finite time.
cFIREsim Retirement Calculator
The cFIREsim Retirement Calculator has been a favorite since it is created by a member of the early retirement community. The website lists upcoming features.