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US Navy Calculator - Body Fat Calculator

What is my navy fitness level when measuring body fat using the Navy Body Fat Test and Navy Body Fat Chart?

This Body Fat Navy Calculator uses the U.S. Navy fitness formula to get an estimated measuring of body fat percent. Use a tape measure then enter your waist, hip, and neck measurements. Combine these measurements with your gender and height and this navy calculator will estimate body fat percent, lean mass, fat mass, and your general navy fitness category. (You can see the Navy Body Fat Chart by clicking the down arrow icon right under the results.) The water displacement test is the most accurate way to determine body fat percent, but the Navy Body Fat test or YMCA formula is accurate within 1-3% for most people.

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andy xavier   me gusto - 11/12/2017 12:06:06 PM

Luis   This is a bullshit... doesn't work. - 10/28/2017 11:27:44 AM

Dan   Of course it's not gonna be accurate for everybody. People with wider necks than average, guys who store more body fat on their lower body than their belly etc. It is pretty accurate for me. Much better than bioimpedance scales for example. I'm a pretty fit guy with somewhat visible abs and my scale says I'm at 22 %. This calculation puts me at about 16 %. - 10/1/2017 6:39:02 AM

Shander2   It seemed off BUT then I read the waist was measured at the Navel ! My waist at my hips is way smaller than at my navel... the fat percentage looked right after shifting from 34 jeans size to 38 which i think I'd need to wear a high waist kind of pants like many tuxedos are. - 9/11/2017 4:15:07 PM

Kenneth   The calculator seems to have changed since I used it yesterday and isn't showing my results after inputting my measurements - 8/25/2017 5:48:25 PM

Samir   Very accurate. After I got my body fat % using this formula I went to a testing facility and had it professionally measured (using a water tank). There was only a 1% difference. - 8/21/2017 9:15:41 AM

Nicholas   I got 2 percent bodyfat even though I look like 9 percent. - 8/10/2017 9:41:22 PM

Ana   Hello all. I think for me it got it right. I'm 5'6 and 128 pounds, i got 23% body fat. Last time I visited a nutritionist he calculated body fat using a caliper which is more accurate and he said I had 24%. I used metric in this calculator, if that makes any difference because of not rounding numbers... - 7/11/2017 12:00:28 PM

Carolyn   28 % body fat - 6/21/2017 6:50:02 AM

Tom   This numbers don't look right at all. At 66kg and 170cm with a 39cm neck and 79cm waist, I'm nowhere near 12% body fat. I'm calling the calculator kinda bullshitty or the formula is probably in a bad shape. If I had 10cm to the waist (making it 89), it puts me at 20%, which is a bit more believable. - 6/13/2017 7:05:46 PM

Kai   So I'm 5'3 male 113 lbs and apparently I have -74% body fat, -84 lbs of fat, and 197 lbs of lean mass. Neat - 6/13/2017 2:38:43 PM

Martha Alanis   Boda fat: ideal - 6/12/2017 4:28:28 PM

Leran   I'm 6 foot 3 150 lbss at 9% body fat and my abs arent too visible even tho i've been working them out everyday for almost a month. How great my genetics are. - 6/11/2017 7:42:00 AM

Bob   To measure waist size at belly button, does stomach have to be relaxed or can you flex it, tightening it up? I'm 42" relaxed, but 34" tight and wear a 34" waist size pants. - 6/2/2017 11:21:24 AM

Anne   Thank you - 5/23/2017 6:26:16 AM

Joel   This calc is idiotic, I'm around 11-12% but this test tells me 19%. Full retard. - 5/22/2017 8:32:40 AM

Sarah   This isn't right because this method DOES allow for half-inch measurements. In fact the instructions say to round to the nearest half inch. The fact that this calculator doesn't allow decimals at all makes it useless. - 5/21/2017 5:56:38 AM

Kyrra Powell   I lost like 3 lbs for mostly my thighs and stomach but gained more upper strength. - 4/30/2017 11:44:07 PM

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Ben   All body fat calculations are based on statistical analysis. Just like how BMI is useful for insurance companies to accurately predict what your medical costs are going to be, this BF% test is useful for the navy to predict your capacity for fitness. It doesn't actually test your body fat, it doesn't measure motivation, performance, progress, or appearance. So don't worry if it's not accurate. It isn't meant to be and doesn't need to be. For the individual, it is useful as a tool to keep yourself grounded with measurable numbers in the context of how you feel about how you look and feel. Even if you had perfectly accurate BF% numbers, who cares? What would you do with that number anyway? - 4/13/2017 10:30:37 AM

The Body Fat Navy Calculator is a Good Tool for Measuring Body Fat and Navy Fitness Level

The comments show passionate emotions and controversial disussions over this Body Fat Navy Calculator! Whether you like the results or not, we've had a couple of recruiters tell us they use it all the time. Please keep in mind that we did not develop the Navy fitness criteria, we just created this Body Fat Navy Calculator using their formulas and interpreted from their body fat chart as a way to help people who are monitoring and measuring body fat. I haven't been able to verify this, but I would guess the Navy's body fat test was developed decades ago by men and during a time when it was only used on male recruits because female servicewomen were not in combat roles.

No body fat percent calculator will be very accurate for people with a very muscular build. There is no argument that a hydrostatic or underwater test is by far the most accurate tool for body fat test tool, but it is not a practical tool to measure ongoing progress due to cost and availability.

There are other formulas for measuring body fat. You may also be interested in another body fat percent calculator: YMCA Body Fat Calculator, 3 Skinfold Body Fat Calculator, 4 Skinfold Body Fat Calculator, and 7 Skinfold Body Fat Calculator.

Field Help

Input Fields

TitleA title for these calculator results that will help you identify it if you have printed out several versions of the calculator.

US/MetricChoose US or Metric units.

GenderSelect your gender.

WeightYour current scale weight.

HeightYour height. Use feet (ft) and inches (in) if units is US or centimeters (cm) if units is Metric.

Waist (at narrowest)Your waist measurement at its narrowest point (usually right above the belly button).

Waist (at navel)Your waist measurement at the navel (or belly button).

Hip (at widest)Your hip measurement at its widest point.

Neck (at narrowest)Your neck measurement at its narrowest point.

Output Fields

Body FatThe approximate percentage of your body's mass that is made up of fat.

Fat MassThe portion of your weight that is fat.

Lean MassThe portion of your weight that is lean (not fat).

Body Fat CategoryYour body fat category depends on your gender and your body fat percentage.

Body Fat Categories TableThis table shows you the Body Fat Range for each Classification so you can see how close your calculated Body Fat percentage is to the next Body Fat Classification range.

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