GMROI Calculator


Calculating Gross Margin Return on Investment (GMROI) is essential for retailers to assess the profitability of their inventory. GMROI helps determine how efficiently a company is utilizing its inventory to generate profit. This article presents a simple yet accurate GMROI calculator.

How to Use

To use the GMROI calculator, simply input the necessary values into the provided fields and click the “Calculate” button. The calculator will then compute the GMROI for you.


GMROI is calculated using the following formula:


  • Gross Margin = Net Sales – Cost of Goods Sold (COGS)
  • Average Inventory Cost = (Beginning Inventory + Ending Inventory) / 2

Example Solve

Let’s consider an example:

  • Net Sales = $50,000
  • COGS = $30,000
  • Beginning Inventory = $10,000
  • Ending Inventory = $15,000

Using the formula:

Now, substituting the values into the GMROI formula:

So, the GMROI for this example is 1.6.


What is GMROI?

GMROI stands for Gross Margin Return on Investment. It is a financial metric used by retailers to measure the profitability of their inventory.

Why is GMROI important?

GMROI helps retailers understand how effectively their inventory is being managed to generate profit. It provides insights into which products are contributing most to profitability and helps in making informed inventory management decisions.


In conclusion, the GMROI calculator provided here offers a convenient way for retailers to assess the efficiency of their inventory management. By inputting key financial data, businesses can quickly calculate their GMROI and gain valuable insights into their profitability.

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