Opioid Conversion Calculator
Use our free Opioid Conversion calculator to quickly estimate your equivalent opioid dose (daily MME or target opioid dosing), based on key inputs like current opioid, strength per unit, units per day, route, and target opioid. Perfect for clinicians, pharmacists, and advanced practice providers. This tool converts an opioid regimen into morphine milligram equivalents (MME) and then converts MMEs into an estimated equivalent dose of a different opioid using accepted MME conversion factors. It handles single or multiple concurrent opioids, supports oral and transdermal routes where conversion factors exist, and highlights high-risk total MME values so you can flag cases that need closer review. The calculator does not replace clinical judgment — always account for cross-tolerance, patient-specific factors (age, organ function, opioid tolerance), and local formularies or PDMP guidance when making prescription changes. This tool converts an opioid regimen into morphine milligram equivalents (MME) and then converts MMEs into an estimated equivalent dose of a different opioid using accepted MME conversion factors. It handles single or multiple concurrent opioids, supports oral and transdermal routes where conversion factors exist, and highlights high-risk total MME values so you can flag cases that need closer review. The calculator does not replace clinical judgment — always account for cross-tolerance, patient-specific factors (age, organ function, opioid tolerance), and local formularies or PDMP guidance when making prescription changes.
Opioid Conversion Formula
Understanding and using the conversion formula matters because it translates heterogeneous opioid prescriptions into a single, comparable metric (MME) so clinicians can: detect high total opioid exposure, compare and reconcile multiple prescriber regimens, and estimate equivalent dosing when switching therapies. Conversions reveal key drivers of risk (potency, route, formulation, and cumulative prescriptions) and help avoid unintentional overdosing during transitions. Edge cases—like methadone, buprenorphine, and fentanyl patches—use non-linear or product-specific factors and often require specialist input; conversion tables are meant as a guide, not a substitute for clinical judgment. Finally, always consider cross-tolerance (reduce calculated target dose), patient age, renal/hepatic function, and recent dose escalations; these factors materially change safe starting doses and monitoring needs.
How this opioid conversion calculator works
This calculator estimates your equivalent opioid dose by converting each opioid in a regimen to morphine milligram equivalents (MME) using published conversion factors, summing MMEs, and converting that total to a target opioid dose using the target’s conversion factor; optional cross-tolerance reduction is applied for safety. It’s designed to provide a fast, reproducible starting estimate so prescribers can make informed dose-change decisions.
Walkthrough & assumptions:
When to use this opioid conversion calculator
Use this calculator when you need a quick, transparent estimate of equivalent opioid dosing to support safe prescribing, transitions of care, or chart reconciliation. It’s most useful at handoffs, during formulary switches, and when consolidating multi-prescriber regimens.
Converting between oral opioids during an inpatient→outpatient transfer — get a starting dose estimate and safety adjustment for cross-tolerance.
Reconciling prescriptions from multiple clinicians — sum MMEs to detect elevated cumulative exposure.
Switching from short-acting to long-acting formulations — calculate total daily MME then divide across long-acting dosing intervals.
When considering naloxone co-prescription — identify patients whose total MME or risk factors warrant naloxone.
Triage for specialist consultation — flag methadone, buprenorphine, or fentanyl patch conversions that need addiction/pain specialty input.
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Average Profit Margins by Industry
Understand how healthcare-related services compare across industries. Below are typical profit margin ranges:
Hospitals & Healthcare Providers
Pharmacies
Pharmaceutical Companies
Medical Device Manufacturers
Insurance Providers
Construction/Contracting
Cleaning Services
These benchmarks highlight how opioid prescribing and monitoring fit into broader healthcare economics.
Frequently Asked Questions
An opioid conversion calculator is a medical tool that estimates the equivalent dose of one opioid based on another’s strength and dosage. It converts various opioid medications into a standardized value—called morphine milligram equivalents (MME)—so clinicians can compare potency and safely switch between drugs.
MME stands for Morphine Milligram Equivalent. It standardizes opioid strength for safety and risk assessment.
No—this is an educational tool. Always consult prescribing guidelines and patient-specific factors.
It covers the most commonly prescribed opioids. For less common medications, consult clinical references.
The CDC notes increased risk of overdose at ≥50 MME/day and significant risk above 90 MME/day.
Yes—calculate baseline MME, then gradually adjust per tapering protocol.
No—dose adjustments for tolerance must be made clinically.
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