Things You'll Need
- Soft tape measure
- Calculator
Instructions
Find a soft tape measure like the kind used by tailors, and purchase the largest available. You'll need a tape measure that can go around the horse's girth.
Lay the tape measure over the horse's back, positioning it just behind his withers. Reach under your horse to grasp the end of the tape.
Place the tape so that it sits over the girth groove. This is the spot just behind the horse's front legs where the girth of the saddle normally goes. Write down the reading from the tape.
Ask a friend to hold the end of the tape at the point of the horse's shoulder. Extend the tape to the point of the horse's buttocks and take a reading.
Use the formula "[Girth x girth x length] / 330 = Weight" to estimate the weight of your horse. For instance, if your horse's girth measurement is 80 inches and his length measurement is 45 inches, his approximate weight would be 872 pounds. That's 80 inches x 80 inches x 45 inches, divided by 330 = 872 pounds.