Work out opioid conversion (mme) instantly with clear inputs, formula shown and shareable results.
Multiplies a total daily opioid dose by the CDC morphine milligram equivalent factor and compares the result with the 50 and 90 MME/day thresholds.
MME conversion
MME/day = total daily dose x conversion factor (morphine 1, oxycodone 1.5, hydromorphone 4, codeine 0.15, tramadol 0.1)
Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
Methadone conversion is dose-dependent and non-linear, so it should never be converted with a single fixed factor.
No. When rotating opioids the calculated equivalent is reduced by 25 to 50% for incomplete cross-tolerance.