Convert a complete regimen
Add multiple opioids, routes and formulations. See each dose's OME contribution before comparing a target regimen.
Opioid conversion calculator for clinicians
Calculate oral morphine equivalents, compare opioid regimens and check clinical context in one iOS and Android app.
- Multiple opioids
- Works offline
- 6 languages
What OpioidCalc can do
Add current opioids, review the combined OME, compare a target dose and open the supporting details beside the result.
Methadone and breakthrough dosing
Work through methadone-specific conversions, choose a target OME and calculate a breakthrough dose with clear prompts.
Open clinical notes and product details
Open practice points, formulation-specific pharmacology and regional product information without leaving the calculation.
Use local factors and personalise the app
Use approved local conversion factors, choose which opioids appear and keep the calculator available offline in six languages.
Clear about the limits
Equianalgesic ratios differ between references and may change with dose, route and patient factors. Use OpioidCalc as a calculation aid, then check the result against current local guidance.
The app is maintained by Hog and Mole Pty Ltd in Australia, with a direct route for corrections and clear information about evidence, privacy and clinical use.
Get OpioidCalc
Calculate OME and compare opioid regimens on iOS and Android.
Free download with optional in-app purchases. For qualified healthcare professionals. Check results against local guidance.