Course opens: 

Pharmacy Calculations 2 – Ratio & Proportion and Dimensional Analysis


This activity largely focuses on USP General Chapter <1160> Pharmaceutical Calculations in Pharmacy Practice and provides the general information needed to perform the requisite calculations within a compounding pharmacy.

In this eLearning module, you will learn how to establish ratios and proportions, appropriately use conversion factors for various units of measure, and calculate amounts of ingredients in basic formulations using Ratio & Proportion and Dimensional Analysis methods.

Upon successful completion of the eLearning module you will receive an LP3 Network certificate, which can be printed and displayed in your compounding pharmacy as evidence of your training.


Intended audience

  • Pharmacists
  • Pharmacy Technicians
  • Training Supervisors
  • Auditors
  • Inspectors
  • Compliance Specialists

Learning Objectives

  • Establish ratios and proportions for ingredients in a formulation
  • Identify and use necessary unit of measure conversion factors
  • Calculate the amount of an ingredient required in a formulation using Ratio & Proportion and Dimensional Analysis

Hardware/software requirements

The eLearning module is best viewed on a computer or a tablet* in landscape mode.

*Note: If you are using a Windows 10 tablet, we recommend using a mouse (touchscreen compatibility varies by model).

High-speed internet connectivity and an updated internet browser are required to take the eLearning module. The broadband recommended is 1 Mbps or better. The minimum browser requirements to take the module are:

  • Google Chrome v39 or later
  • Mozilla Firefox v34 or later
  • Internet Explorer v8 or later
  • Microsoft Edge
  • Apple Safari v6 or later
Course summary
Available credit: 
  • 1.00 Contact Hours


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Cancellation and refund policy: 

There are no refunds, returns, or transfers upon purchase of the eLearning Module.


Course expires: