Federal Prison Time Sentence Reduction Calculator

A simplified planning tool for estimating how Good Conduct Time, First Step Act credits, RDAP, and community placement may affect a federal sentence.

Federal sentence calculations can be difficult to understand, especially when several sentence-reduction programs and placement options may apply at the same time. This prototype was created to provide a clearer, more practical estimate without overwhelming users with every possible BOP variable.

The calculator is designed for people who are still on pretrial release or preparing to self-surrender, as well as individuals who are already serving a federal sentence. Our goal is to find the right middle ground: simple enough for families to use, but detailed enough to include the main factors that usually matter.

Good Conduct Time
FSA Credits
RDAP
Community Placement
Important: This calculator is for educational planning purposes only. It is not an official Bureau of Prisons sentence computation. Actual results may vary based on BOP records, eligibility decisions, PATTERN score, RDAP approval, disciplinary history, detainers, program availability, halfway house/home confinement decisions, and current BOP policy.
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Still Have Questions?

Every federal case is different. If you're unsure how the First Step Act, RDAP, Good Conduct Time, or your specific circumstances affect your projected release date, we're happy to help.

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Federal Prison Planning Tool

Sentence Reduction Calculator

Estimate how Good Conduct Time, First Step Act credits, RDAP, and community placement may affect a federal sentence.

Federal sentence calculations can be complex. Multiple programs and placement decisions may overlap, and every case is unique.

This calculator was built as a practical planning tool for people on pretrial release, individuals preparing to self-surrender, those already serving a federal sentence, and families who want clarity about what may happen next.

The goal is not just to give a number. The goal is to help explain the factors that matter most and provide a clearer starting point before reviewing your records and options in detail.

Good Conduct
Time
FSA
Credits
RDAP
Community
Placement

Sentence Time Projection

Enter the sentence information below to generate an educational estimate of projected secure prison time, community placement, and potential release timing.

1

Sentence Information

Sentence imposed, start date, and jail credit.

2

FSA + PATTERN

First Step Act credits and risk level assumptions.

3

RDAP Estimate

Possible RDAP sentence reduction if eligible and approved.

RDAP is estimated automatically: 24-30 months = 6 months, 31-36 months = 9 months, 37+ months = 12 months.
4

Community Placement

Best-case RRC / halfway house and home confinement estimate.

This calculator automatically estimates best-case community placement to avoid impossible projections.