Enter the coverage area (ft^2) and the area per ton of rock (ft^2/ton) into the Calculator. The calculator will evaluate the Rock Coverage. 

Rock Coverage Formula



  • RC is the Rock Coverage (tons)
  • CA is the coverage area (ft^2)
  • CAT is the area per ton of rock (ft^2/ton)

To calculate Rock Coverage, divide the coverage area by the area per ton of rock.

How to Calculate Rock Coverage?

The following steps outline how to calculate the Rock Coverage.

  1. First, determine the coverage area (ft^2). 
  2. Next, determine the area per ton of rock (ft^2/ton). 
  3. Next, gather the formula from above = RC = CA / CAT.
  4. Finally, calculate the Rock Coverage.
  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.

coverage area (ft^2) = 18,000

area per ton of rock (ft^2/ton) = 300