No matter what type of horse you ride or what kind of riding you do, it is important to have a saddle that fits both you and your horse. Choosing a saddle that is too small will leave you feeling cramped and uncomfortable, while a saddle that is too large will not keep you securely in place. Knowing how to measure an English saddle will help to ensure the perfect fit when you make your purchase.
Use an online guide, such as that at the Tack Guide (see Resources) to determine the seat size that is most likely to fit your frame. Keep in mind, however, that this is only a guideline, and you might need a saddle that is larger or smaller, depending on your body shape and size.
Place the saddle on a sturdy saddle stand. It is easier to measure the saddle if it is on a firm surface.
Place the end of the measuring tape on the round button at the front of the saddle. Extend the measuring tape back to the end of the saddle seat.
Read the measurement on the tape. This is the seat size of the English saddle.
A soft measuring tape like the kind tailors use will work best for measuring your saddle.