The official DoD Blended Retirement System (BRS) calculator is now available.

The calculator uses service dates, expected retirement date, career progression, life expectancy, TSP contribution rate and expected return, and continuation pay bonus information to create a comparison between the "High-3" legacy retirement benefit and the BRS retirement system.

Here are some screenshots of the calculator:

I haven't had a chance to review the calculations themselves, but I'm impressed with the inputs incorporated into this beta version.

I'd like to see some way to perform sensitivity and break-point analyses. Also, the calculator could also incorporate an individual's personal discount rate to make this decision tool more robust.