Opioid Equianalgesic Dose Conversion Calculator

Convert between oral and parenteral opioid doses using equianalgesic tables: morphine, oxycodone, hydromorphone, fentanyl, tramadol, codeine, and buprenorphine, with route-specific adjustments.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Convert between oral and parenteral opioid doses using equianalgesic tables: morphine, oxycodone, hydromorphone, fentanyl, tramadol, codeine, and buprenorphine, with route-specific adjustments

Each component has a specific meaning:

  • Equianalgesic tables: morphine — The equianalgesic tables: morphine recorded for the scenario being assessed.
  • Oxycodone — The oxycodone recorded for the scenario being assessed.
  • Hydromorphone — The hydromorphone recorded for the scenario being assessed.
  • Fentanyl — The fentanyl recorded for the scenario being assessed.
  • Tramadol — The tramadol recorded for the scenario being assessed.
  • Codeine — The codeine recorded for the scenario being assessed.

Note: Interpret the opioid conversion result against the thresholds and context described above.

How to Use

Enter the equianalgesic tables: morphine, oxycodone, hydromorphone, fentanyl, tramadol, codeine for the scenario you are assessing. Convert between oral and parenteral opioid doses using equianalgesic tables: morphine, oxycodone, hydromorphone, fentanyl, tramadol, codeine, and buprenorphine, with route-specific adjustments. Use the opioid conversion result to inform your calculation.

Frequently Asked Questions