MME Calculator

Calculate Morphine Milligram Equivalents (MME) daily dose using CDC clinical factors.

MME Calculator Options

Enter daily doses for each opioid below to calculate total daily MME.

Result Details
Enter parameters and click Calculate to view.
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Clinical Tool

MME Calculator

Estimate total daily Morphine Milligram Equivalents (MME).

100% Free & Local
STEP 01

Input Daily Doses

Enter the total daily milligrams prescribed for each common opioid compound.

STEP 02

Equivalency Multipliers

The engine applies distinct CDC-derived weight multipliers to convert different molecule strengths.

STEP 03

Evaluate Risk

Review the calculated cumulative MME value against recommended clinical thresholds (50 and 90 MME).

STEP 04

Dosing Summary

Click Calculate to output the summary and obtain warnings regarding potential naloxone recommendations.

Your Privacy Matters

All calculations run locally in your browser.

No Server Uploads

No variables or results are sent to our servers.

Auto-Cleared

Your session data is erased upon closing the tab.

Capabilities

Key Capabilities

Complete Features

CDC Guideline Compliant

Uses conversion factors sourced directly from the CDC Guidelines for Prescribing Opioids.

Multi-Agent Support

Sums and scales concurrent prescriptions (e.g. combining oxycodone and methadone).

Dose Danger Flags

Highlights safety alerts for daily intakes exceeding 50 or 90 MME limits.

Variable Methadone Factor

Correctly applies progressive scaling factors for methadone depending on total daily volume.

Local Secure Processing

Medical regimens stay private in memory. No prescription data is uploaded to our servers.

Help

Common Questions Answered

Support
Q1 What is Morphine Milligram Equivalents (MME)?
MME is a calculation standard that translates the potency of different opioid medications into an equivalent dose of morphine, facilitating cumulative risk assessments.
Q2 What are the key safety thresholds for MME?
CDC guidelines recommend reassessing therapy pathways starting at 50 MME/day, and avoiding or heavily justifying doses of 90 MME/day or higher due to overdose risks.
Q3 How is Methadone MME calculated differently?
Unlike most opioids which have constant multipliers, methadone potency escalates non-linearly. The CDC scales factor weights from 4x (for low doses) up to 12x (for doses above 60 mg/day).
Q4 Does this calculator apply to pediatric patients?
No. MME equations are designed for adults. Pediatric opioid dosing must be managed by specialist pediatric clinical standards.
Q5 Does MME account for cross-tolerance during conversion?
No. MME estimates relative potencies to assess risk. It does NOT represent a direct rotation formula. When rotating opioids, reduce calculated equivalents by 25-50% to prevent overdose.