Manslaughter 1 Oregon Sentencing Calculator

About Manslaughter in the First Degree

Manslaughter in the First Degree is a Class A felony that occurs when a person recklessly causes the death of another person under circumstances manifesting extreme indifference to the value of human life. It is a Measure 11 offense with a mandatory minimum sentence of 120 months (10 years).

Case Information

How to Use This Calculator

1. 1
   The offense Manslaughter in the First Degree (ORS 163.118) is pre-selected.
2. 2
   Select the criminal history category (A-I) based on prior felony convictions. Category I represents no/minimal history, while Category A represents the most extensive criminal history.
3. 3
   Check any applicable aggravating factors or mitigating factors. These may influence sentencing above the mandatory minimum.
4. 4
   Click Calculate Sentence to see both the statutory minimum (Measure 11: 120 months) and a grid-based estimate range.
5. 5
   Review the results including the mandatory minimum and grid estimate. Use the copy button to save the sentence summary.

Important Sentencing Notes

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  Mandatory Minimum: The 120-month (10-year) mandatory minimum cannot be reduced by plea agreements, mitigating factors, or judicial discretion except under very limited circumstances.
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  No Good Time: Measure 11 sentences must be served in full. No earned time credits or early release programs apply during the mandatory minimum period.
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  Sentencing Above Minimum: While the floor is 120 months, judges may impose sentences up to the 20-year statutory maximum based on aggravating factors, criminal history, victim impact, and other circumstances.
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  Grid-Based Estimate: The educational grid estimate shown is based on Oregon Sentencing Guidelines (Level 10) and criminal history. It provides context but does not override the Measure 11 mandatory minimum.
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  Post-Prison Supervision: After serving the prison term, defendants must serve 36 months (3 years) of Post-Prison Supervision with specific conditions.
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  Substantial Assistance: In rare cases, sentences below the mandatory minimum may be possible if the defendant provides substantial assistance to law enforcement under ORS 137.712.
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  Restitution Required: Courts must order restitution to victims under ORS 137.106. Payment of restitution does not reduce the mandatory minimum but is a required part of the sentence.
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  Educational Tool Only: This calculator provides general information. Every case is unique. Consult with a qualified Oregon criminal defense attorney for advice specific to your situation.

Legal Sources & Citations