Underwater weighing in a swimming pool with the FLOATAWEIGH. |
 Underwater weighing with an EXERTECH stainless steel tank. |
Body fat percentage can be accurately estimated by weighing a person who is completely immersed underwater.
How It Works (Archimedes Principle): The buoyant force on an immersed body is equal to the weight of water displaced by the body.
Weight of water displaced → Volume of water displaced = Body volume → Correct for lung volume → Density (Wt./Vol.) → Body fat %
An accurate underwater weight is all you need to get lean body mass and fat percentage by the gold standard method used in research labs. EXERTECH® weighing systems are safe and simple to use. You don’t have to be an expert. If you can weigh someone on a scale, you can do this.
EXERTECH® is the sole source for a unique radio-telemetry weighing system using 4 load cells and powered by ordinary flashlight batteries. The FLOATAWEIGH™ is a patented underwater weighing system on floats. It can be used in any swimming pool with a 3 foot water depth.