Enter the heart girth and body length of the hog into the calculator to estimate its weight. This calculator is useful for farmers and veterinarians who need to estimate the weight of a hog without a scale.

Hog Weight Formula

The following formula is used to estimate the weight of a hog:

HW = (HG^2 * BL) / 400

Variables:

  • HW is the estimated Hog Weight (pounds)
  • HG is the Heart Girth measured around the body of the hog, just behind the front legs (inches)
  • BL is the Body Length measured from the base of the tail to between the ears (inches)

To estimate the weight of a hog, square the heart girth, multiply it by the body length, and then divide by 400.

What is Hog Weight?

Hog weight is the estimated body weight of a hog. It is an important measure for farmers to determine the health and growth rate of their hogs, as well as for making decisions about feeding, breeding, and marketing. Estimating the weight of a hog can be challenging without a scale, but using the heart girth and body length measurements provides a reliable approximation.

How to Calculate Hog Weight?

The following steps outline how to estimate the Hog Weight.


  1. First, measure the heart girth (HG) of the hog in inches.
  2. Next, measure the body length (BL) of the hog in inches.
  3. Use the formula HW = (HG^2 * BL) / 400 to calculate the estimated Hog Weight (HW).
  4. Finally, enter the measurements into the calculator to get the estimated weight in pounds.

Example Problem:

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

Heart Girth (HG) = 50 inches

Body Length (BL) = 40 inches