Addiction Calculator

Written by Great Medico

Updated September 24, 2026 •2 min read

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Substance-use calculations need especially careful interpretation because a score is not the same as a diagnosis or a measure of safety. Addiction Calculator focuses on the limited question its fields can answer.

What this calculator does

Addiction Calculator uses Addiction type, Life lost per use, Times used, Age started, Non-addict life expectancy, Addict life expectancy, and Addiction duration to calculate addiction. It is built around the exact fields displayed in this plugin rather than a generic version of the topic. Where supported, it also shows Direct use estimate, Life-expectancy difference, and Addiction duration so the primary result is easier to place in context. Substance-use calculators can organize exposure or screening information, but they cannot determine impairment, withdrawal safety, diagnosis, or prognosis on their own. When there is risk of overdose or dangerous withdrawal, clinical care takes priority over the score.

How to use it

Complete the requested fields, including Addiction type, Life lost per use, Times used, Age started, Non-addict life expectancy, and Addict life expectancy, then finish the remaining items shown in the calculator. Confirm that each yes/no, category, date, or score option is applied exactly as labeled. Keep amounts, dates, and questionnaire answers within the same exposure or screening timeframe requested by the tool.

How the calculation works

This is an illustrative arithmetic model rather than a validated clinical score. It adds direct “life lost per use × number of uses” to the difference between the entered non-addicted and addicted life expectancies, then converts the combined minutes into years. The entered addiction duration is displayed as context but does not create a medically validated individualized mortality forecast.

Example

Using the sample values prefilled in this calculator, the primary result is 10 years (Estimated life lost), Direct use estimate is 3.7 hours, and Life-expectancy difference is 10 years. This worked example shows how the plugin’s own default inputs flow through the implemented method; replace them with the correct patient, laboratory, imaging, or personal values before interpreting a result.

How to interpret the result

The result summarizes estimated life lost from the entered information. Use it to understand exposure, screening status, or elapsed time—not as a judgment about a person. When the tool produces a positive screening category or higher-dependence band, the useful next step is a fuller assessment and support rather than self-diagnosis.

Limitations and notes

The “life lost” assumptions are not a validated addiction-medicine prediction and can be misleading if interpreted literally. Substance-related risk differs dramatically by drug, dose, route, contamination, overdose risk, co-use, medical history, and access to treatment. Use evidence-based screening and professional help rather than this number to judge severity or prognosis.