Enter the total inventory (units or $) and the total sales (units or $) into the Calculator. The calculator will evaluate the Inventory To Sales Ratio. 

Inventory To Sales Ratio Formula

ISR = I / S


  • ISR is the Inventory To Sales Ratio ()
  • I is the total inventory (units or $)
  • S is the total sales (units or $)

To calculate the Inventory To Sales Ratio, divide the total inventory by the total sales.

How to Calculate Inventory To Sales Ratio?

The following steps outline how to calculate the Inventory To Sales Ratio.

  1. First, determine the total inventory (units or $). 
  2. Next, determine the total sales (units or $). 
  3. Next, gather the formula from above = ISR = I / S.
  4. Finally, calculate the Inventory To Sales Ratio.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

total inventory (units or $) = 450

total sales (units or $) = 800