Opioid iframe Opioid Conversion Calculator Opioid Conversion Calculator Mode Selection: Single Opioid Conversion Multiple Opioids MME Calculator Convert from: Morphine Codeine Fentanyl transdermal (in mcg/hr) Methadone Oxycodone Tramadol Current Dose (mg or mcg/hr): Convert to: Morphine Codeine Fentanyl transdermal (in mcg/hr) Methadone Oxycodone Tramadol Calculate Opioid: Codeine Fentanyl transdermal (mcg/hr) Methadone Morphine Oxycodone Tramadol Dose: Remove Add Another Opioid Calculate Total MME