The participants' RMR was measured by using indirect calorimetry (TrueOne2400) and also calculated from various predicted equations of RMR (Harris-Benedict, Schofield(W)/(WH), FAO/WHO/UNU(W)/(W/H), Cunningham, Mifflin, Liu, Owen, IMNA and Henry(W)/(WH)). Subjects were 28 healthy policemen on a rotating shift (males) age of 23-46 years. If you’re not sure what your current body fat percentage is, check out this article to get a sense of where you are.The purpose of this study was to analyze the accuracy of predictive equations for resting metabolic rate (RMR) and daily energy expenditure in policemen on a rotating shift. Just enter your current body weight in the field below, select lbs or kg, and then put in an estimate of your body fat percentage. Using the Katch-McArdle BMR calculator is fairly straightforward. This formula takes body fat into account properly, and is therefore the most accurate when used correctly. This is because BMR depends quite a bit on lean body mass, as we discuss in this article.Īnd while the age, height and sex variables used in the Mifflin-St Jeor formula try to account for this, it still often falls short.įor this reason, we strongly recommend using the Katch-McArdle formula to calculate your BMR. They don’t properly take differing body fat percentages into account.Įven for people that are exactly the same weight, the amount of body fat that they’re holding can make a fairly significant difference to their BMR.įor example, a person who weighs 190 pounds at 30% body fat will have a drastically different BMR to a person who weighs 190 pounds at 8% body fat. Still, from our experience training 100s of people, we’ve found that both of these formulas are missing a key component: However, in recent years, the Mifflin-St Jeor formula has been thought to be more accurate, and has subsequently become the formula that most website calculators are based around these days. This formula is based on your body weight, age, height, and sex. There are actually several different ways to determine your BMR, and all of these methods will produce different results.įor a long time, the most popular method for determining BMR was the Harris-Benedict formula. In this article, I’m going to show you the easiest, most accurate way to calculate your BMR, which will help provide the basis for how many calories you should be eating each day – regardless of whether you’re trying to lose weight or bulk up. It can vary considerably based on your weight, height, age, and body fat percentage – not to mention the impact of certain hormones, such as leptin. In fact, your BMR will typically make up the majority of calories that you burn each day – unless you are running marathons or laboring away intensively during your waking hours.Īlso, as we’ve covered before, your BMR isn’t static. Well, it’s a whole lot, to say the least… What many people don’t realize, however, is just how many calories your BMR actually accounts for each day. We’re talking about the amount of energy that’s required for breathing, to control your heart beating, and to keep the rest of your organs functioning properly.īasically, everything that needs to happen to keep you alive! It stands for Basal Metabolic Rate, and is the amount of energy that your body needs every single day to sustain its basic functions. In the world of health and fitness, BMR is one of those acronyms that gets thrown around quite a bit. How To Calculate Your BMR Quickly & Accurately
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