The tools and the rules
Everything on this site that is not a guide. It works the same whether you are the one going or the one waiting.
The calculators run entirely in your browser. Nothing you type into them is sent anywhere, and that is not going to change.
The calculators
The math nobody does for you at sentencing.
The facilities
What a specific prison is actually like, and who to ask when this site does not know.
The one that needs an account
Everything above works signed out. This one does not, because it generates something that belongs to you.
The Bureau's own words
When somebody tells you what the rule is, this is how you check.
The guides are separate
These are the tools. The long-form writing splits by who you are: for the one going in and for the one waiting. Before you pay anybody in this industry, including me, there is a whole section on that.
These pages cover the general rules. Your situation has details they don't. Email me a question. Answers are free, and "you don't need to pay anyone for this" is my most common answer.
I answer in the order received, usually within a couple of days. I have a day job. If your situation genuinely needs more than an email, I take a limited number of consults, so say so and we'll work it out.
If this helped, it'll help someone else's family too.