Enter the area to cover (ft^2) and the depth to fill (in) into the Topdressing Weight Calculator. The calculator will evaluate the Topdressing Weight. 

Topdressing Weight Formula

The following two example problems outline the steps and information needed to calculate the Topdressing Weight.

TW = A * D/12 * 101.8


  • TW is the Topdressing Weight (pounds)
  • A is the area to cover (ft^2) 
  • D is the depth to fill (in) 

How to Calculate Topdressing Weight?

The following steps outline how to calculate the Topdressing Weight.

  1. First, determine the area to cover (ft^2). 
  2. Next, determine the depth to fill (in). 
  3. Next, gather the formula from above = TW = A * D/12 * 101.8.
  4. Finally, calculate the Topdressing Weight.
  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.

area to cover (ft^2) = 300

depth to fill (in) = 5

TW = A * D/12 * 101.8 = ?