How long will my wife serve on an 18-month sentence?
my wife got sentenced to 18 months and 4 months time served. How long will she actually be there?
Ernest Demaree
https://www.inmateaid.com/ask-the-inmate
The typical calculation is 85% of your sentence is what you'll serve.
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The typical calculation is 85% of your sentence is what you'll serve. That equates to 15.3 months, with 4 months already served, there is 11.3 months remaining
https://www.inmateaid.com/ask-the-inmate/how-long-will-my-wife-serve-on-an-18-month-sentence#answer
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Accepted Answer Date Created: April 27,2023
InmateAid
https://www.inmateaid.com
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About this answer:
This response was prepared by InmateAid’s editorial team in consultation with former inmates who have direct experience with the federal correctional system. InmateAid has served families of the incarcerated since 2012. This is general information only — not legal advice.
Last reviewed April 2026.