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Morphine Equivalent (MME) Calculator

Convert any opioid daily dose to morphine equivalents.

Convert a daily dose of an opioid to its morphine milligram equivalents (MME) using CDC conversion factors. Defaults are oral; methadone is dose-dependent and uses a conservative 4× factor.

Priya Venkatesan By Priya Venkatesan
Reviewed by Dr. Helena Ortiz
Published Last reviewed 1 min read

Inputs

mg

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

MME = daily_dose · conversion_factor. CDC factors: hydrocodone 1, oxycodone 1.5, hydromorphone 4, oxymorphone 3, morphine 1, codeine 0.15, tramadol 0.1, methadone (conservative) 4.

In depth

Convert a daily dose of an opioid to its morphine milligram equivalents (MME) using CDC conversion factors. Defaults are oral; methadone is dose-dependent and uses a conservative 4× factor.