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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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Hunter   It'd be nice if this calculator would allow for decimals. I don't see why not. I prefer to use metric units for better accuracy. I'm kind of skinny, 188 cm 73 kg (6'2, 161), 83 cm waist at navel and 40 cm neck...gives me 12% body fat. I don't know about that; I know genetics are a big factor to consider, but I don't have any real ab definition or anything. I don't consider myself an ectomorph, I think I'm more like a meso at a low weight. I used to be at about 23 - 24% at 200 pounds (91 kg) when I was on prescription medications though, and wore jeans with a waist size of 34, though my real waist was probably closer to 35. Now, trying on my brother's 32's, they're actually loose. I'll have to go out and get some 31's, or possibly even 30's pretty soon. - 11/1/2016 4:04:50 PM

cezary   thank you for helping me conaitre my body fat levels Modifier - 11/1/2016 12:08:24 PM

simonne plott   Savvy discussion . I was enlightened by the info . Does someone know if my assistant would be able to locate a blank AK 812 form to fill out ? - 10/26/2016 2:05:16 AM

crisanto   boa tarde!!!! Excelente. Gostei e atendeu os meus interesses. Obrigado. Boa tarde. - 10/3/2016 9:43:47 AM

Joe K   5' 10" 150 pounds 30 inch waist at navel 14 inch neck 11% BF. 17 Lbs Fat. 133 Lbs Muscle. Type: Athletic Makes sense. Regularly lift 3 times a week. sometimes more. And I actually care about what I eat and choose carefully. Bench: 180 Squat: 280 Deadlift: 330 for the curious - 9/30/2016 12:43:11 AM

Watch   shivam, your measurements are coming out crazy, because you're mixing English/US measurements, Metric weight at the same time. Your weight is 55 KG, which would be 121lbs. Your weight is listed in metric, but everything else in English/US. You say your neck is 14 CM - it can't be. A baby's neck is larger. You've measured your neck and belly in inches - not CM. Your neck is 35 CM, and your waist is 81 CM. Putting the correct values in(assuming you're female) I get 26% body fat. 17% if you're male. - 9/26/2016 7:24:11 AM

Sea Greene   I am female and getting 34-35 % BF (obese...NOT) from this calculator, while skin calipers give me 26-28; while men commenting here overwhelmingly think this calculator undercalculates their BF. As other females have commented below, if I toggle it to "Man," my BF is 20% ("acceptable" range). LOL As the admin says, this test was likely created only for male recruits. I would say my results can be added to confirm that it is inaccurate for women. ...But judging from these comments it is not so accurate for men, even. - 9/25/2016 4:00:54 AM

British   if I do five push-up, is my body fat percentage will drop 5 percent? I do not understand. What is the world even about. Bye - 9/24/2016 7:46:21 PM

Jacques   @SwedishCherf I'm also curious about that. I recently lost 100+ lb on a diet and have a lot of loose skin. I work out daily, but it's only the basics (push-ups, crunches, lunges). The calculator puts me at 17%, but other people in the comments say you can't see your abs (which I can) above 10%. Commenter "Jamar" said he's at 8% and his abs are "there but not all that visible." I'd say that describes me too, but they're mostly not visible in areas where I have the most loose skin. - 9/7/2016 8:41:35 PM

shivam   my body fat is coming 63% ..m confused could u pls let me knw in waist column i have to take measurement of belly part only so why u take measurement of chest part were we have to fill that measurment as there is no option to put that my heigth is 5.4 weigth 55 kg belly size 32cm and neck is 14 cm - 8/8/2016 12:33:53 AM

Nick   @cbs: The wider your neck the more muscle you have, though this isn't an exact 1 to 1 thing as there is also some fat storage there but very little. - 8/7/2016 3:35:24 AM

SwedishCherf   How accurate is this test for people who've recently lost a lot of weight and have a lot of loose skin? Because the test results here say my BF% is 18 (measured twice, used average, for every measurement), but I really don't think that's true. It must be much higher than that. My scale says it's around 30, and though I don't think it's accurate either it can't be off by that much! - 8/4/2016 11:45:48 AM

Laura D'Aniello   Based on my body fat5 of 15%, weight of 132 lbs, and female gender, what would my approximate BAC level be after 4 beers of 7.5% abv each, over a period of 4 hours? - 7/28/2016 4:03:36 AM

cbs   Wow-so according to this calculator, the skinnier your neck, the larger you percentage of body fat. Query, how's that work? - 7/27/2016 1:25:28 PM

Joe Mama   This sux - 7/23/2016 7:14:30 PM

Unreal   Mine says I'm 12% body fat but I look more like 20%. - 7/22/2016 1:59:35 PM

Ann   How does this calculate hour glass women? My chest to breast difference is rather large, additionally my largest chest measurement is the same as my hip. These parts are not ALL muscle. Does this calculator account for that? Does any tape measure calculator account for that? - 7/20/2016 11:58:02 AM

John   Steve and Ralph you need to be under 10% or under to be able to see your abs....Don't want to say what my BF is! - 7/15/2016 5:06:06 AM

Jamar   @Steve and @Ralph. That's perfectly normal. Abs depend on body type as well but normally (with a few rare exceptions) abs are only visible at 10% or less. If you want to go ryan reynolds like you should aim at about 6%. I'm at 8% or 9% depending on how I calculate and even then they're there but not all that visible. So 14% and a little tummy is perfectly normal. - 6/3/2016 4:48:33 AM

Waleed fahmy   how much is the accuracy deviation of this method ? it gives me 17% fat percentage while when it is measured by bathroom fat scale it gives 24% which is more accurate ? - 5/30/2016 4:41:05 PM


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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