calculating value of retirement and pension funds on CSS profile

I’m a retired federal employee filling out the CSS profile for my child. Does anyone know how to value your federal pension? I know the value of my TSP but not my pension.

I haven’t completed Profile in a while. Last time I did, I had already qualified for a federal (military) pension, and I didn’t report the value on Profile because Profile didn’t ask for it. If it had been asked for, I wouldn’t know how to come up with the present value, other than some kind of actuarial process, which is really just a shot in the dark with a lot of guesses.

If you’re reasonably certain that a federal pension is a reportable asset on Profile, what is the language of the question that calls for the data? Are there instructions for that particular question that provide any help?