Hi, I'm Billy Beck III from Billy Beck III Personal Training Center. Today, I'm going to show you how to use calipers to estimate body fat percentage. With me to demonstrate is super trainer Brian Francis. Now, there are a lot of different calipers out there. There are Harpenden calipers which are anywhere from $400 to $500. Which are the top of the line, the best stuff you are going to find in the clinical setting and the upper level personal training studios. Then there are the very common Lange calipers which are $200 to $300 in most cases. And most personal trainers use those ones. But, if you are going to estimate your body fat percentage at home I recommend using something called an Accu-Measure caliper. Now, this is what it looks like. It's an inexpensive device, it's about ten bucks. And in that ten bucks you take one site, and I recommend doing more then one site. And when you do the measurements make sure you use a scientific approach. Don't randomly take measurements here and there. Make sure you take it from the same site under the same conditions, 'cause a lot of people, if you do it before or after your workout it's going to be a difference between before and after. In other words if you do triceps like Brian is showing right here and you just, you just work them there's more blood in the area so your measurement is going to be higher post workout then pre-workout. So, always take your measurements before your workout or at least two hours afterwards. Now I'm going to show you just how to take a single measurement. Here we are going to use the tricep. There's formulas for up to 12 different sites on the body. We are just going to do one taking it from the tricep. But this is, you want to at first know exactly what we are doing. So, normally I would take a measure, a measuring tape and find the exact spot and use that same spot every time. When you take a measurement you want to make sure that you pinch and pull out slightly. A lot of people just randomly grab and then plop it on, it's usually not that great of an experience for the client or for the trainer. So, when you do this pinch, pull. After you locate the exact spot hold the calipers perpendicular to the spot. Make sure they are not up. Make sure they are not down. And once you do it you hear the clip and then it will show you the results. I recommend doing three sites, three measurements at each site. And that was the best way to estimate your body fat percentage. I'm Billy Beck III, and this has been how to estimate your body fat percentage using calipers.