Are you wondering what size girth your horse needs? Most horses fall between a size 28inch – 34inch, but you can calculate for your horse. Figuring the girth size is a simple process with a tape measure and calculator. Asking someone to assist you makes it a bit easier and eliminates trying to wrangle around the horse.
*TIP: If you don’t have a tape measure, use a string and take the measurement later.
Here's how to do it:
With your horse standing on a level surface and all treats fully digested, pass the tape measure around his body where the girth will rest. Make the two ends meet and pull it snugly. Take a look at the number. This is your horse's heart girth.
Use this formula to calculate the horse’s girth size: Heart Girth Measurement divided by 2, then Subtract 3 Example: (70/2) - 3 = 32"
You may need to round up as many girths only come in even numbers. This will give you a good estimate for ordering the correct size. You’ll want around 8-10inches between your cinch and saddle.