Enter the heart girth and the length of a pig into the calculator to estimate the weight of the pig in pounds. This calculator can also determine the heart girth or length when given the other variables.

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## Pig Weight Formula

The following formula is used to calculate the weight of a pig without the use of a scale:

PW = HG^2 * L / 400

- Where PW is the pig weight (lbs)
- HG is the heart girth (inches)
- Heart hearth is the measure of the circumference of the pig as measured directly behind the front legs.

- L is the length of the pig (inches)

To calculate a pig weight, multiply the heart girth squared by the length, then divide by 400.

## How much to pigs weight?

A pig’s weight can vary greatly depending on its breed. On the high end, some breeds can weigh all the way up to 750 lbs. On the smaller end, pigs my only reach 120-150 lbs.

## How to calculate a pig weight without a scale?

**Example Problem: **

The following example outlines the steps and information needed to estimate the weight of a pig without a scale.

First, measure the heart girth. Take a measurement of the circumference of the pig directly behind its front legs, and approximately where the heart is.

For this example, the heart girth is 45 inches.

Next, measure the length of the pig from head to tail. For this example, the length of the pig is measured to be 55 inches.

Finally, calculate the weight of the pig using the formula above:

PW = HG^2 * L / 400

PW = 45^2 * 50 / 400

PW = 253.125 lbs