Enter the surface area (ft^2) and the effective production rate (ft^2/min) into the Sandblasting Time Calculator. The calculator will evaluate the Sandblasting Time. 

Sandblasting Time Formula

The following two example problems outline the steps and information needed to calculate the Sandblasting Time.



  • SNDT is the Sandblasting Time (minutes)
  • SA is the surface area (ft^2) 
  • EPR is the effective production rate (ft^2/min) 

To calculate the sandblasting time, divide the surface area by the effective production rate.

How to Calculate Sandblasting Time?

The following steps outline how to calculate the Sandblasting Time.

  1. First, determine the surface area (ft^2). 
  2. Next, determine the effective production rate (ft^2/min). 
  3. Next, gather the formula from above = SNDT = SA / EPR.
  4. Finally, calculate the Sandblasting Time.
  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.

surface area (ft^2) = 40

effective production rate (ft^2/min) = 3

SNDT = SA / EPR = ?