Enter the bale width, bale diameter, and wrap thickness into the calculator to determine the total net wrap needed for a round bale. This calculator helps in estimating the amount of net wrap required to cover the bale completely.

Net Wrap Formula

The following formula is used to calculate the total net wrap needed.

TW = (π * BD * BW) / 144

Variables:

  • TW is the total wrap needed (square feet)
  • BD is the bale diameter (inches)
  • BW is the bale width (inches)

To calculate the total net wrap needed, multiply the circumference of the bale (π times the bale diameter) by the bale width and then convert the result from square inches to square feet by dividing by 144.

What is Net Wrap?

Net wrap is a type of material used in agricultural operations to wrap around round bales of hay or straw. It helps to maintain the shape of the bale, protect it from weather, and make handling and transportation easier. The net wrap must be of sufficient length and width to cover the entire bale securely.

How to Calculate Net Wrap?

The following steps outline how to calculate the total net wrap needed for a round bale.


  1. First, measure the bale diameter (BD) in inches.
  2. Next, measure the bale width (BW) in inches.
  3. Then, gather the formula from above = TW = (π * BD * BW) / 144.
  4. Finally, calculate the total net wrap (TW) needed in square feet.
  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.

bale diameter (BD) = 60 inches

bale width (BW) = 48 inches