The closest way to measure your body fat weight is to first analyze your body fat percentage. You can do this with a machine called the body fat analyzer. You will then get an idea of how your body is composed.
since you measure space in light years, not very acurate. Distances in space are as accurate as the tools by which they are measured.
It's simple to measure body fat. All you need is some measuring tape, and your weight and height measurements. At this website, you can calculate your body fat percentage: http://www.healthcentral.com/cholesterol/home-body-fat-test-2774-143.html. First, you measure your hips with the measuring tape, then your calfs, thighs, and hips. Once you enter this information, you will be given your body fat percentage.
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Body Mass Index; is a measure of body weight based on a person's weight and height. It is not a body fat percentage.
the best way to measure body fat is using a Body Mass Index (BMI). It provides a lot more information than a bathroom scale. This calculation uses a ratio of weight to height to estimate body fat.
There are many places online you can go to for information on measuring body fat. Some of these places are www.annecollins.com/body-fat-calculators.htm and accumeasurefitness.com.
Body fat calipers tell you how much fat you have. Though they aren't essential, they are great to have. They help you measure your success as you go along.
Body Composition
The best device to measure body fat is an expensive tool that trainers and fitness / nutrition professionals use to assess their clients. Many scales, such as the Weight Watchers Scale, can measure body fat. This scale is available from big-box retailers like Target.
There is an online body fat test available at http://www.healthcentral.com/cholesterol/home-body-fat-test-2774-143.html. Although this is not as accurate as a body fat analyzer, it should give you a sense of where you are at body fat percentage wise.
Body fat calipers are an accurate way to measure one's body fat percentage. Weight loss specialists, trainers and doctors will often use these tools to measure one's weight loss progress. They simply pinch the skin and fat in predetermined areas and compare it to a chart so get the proper measurement.