Skinfold measurement calculator

The 7-site skinfold calculator is a sophisticated tool used by fitness professionals and researchers to assess body composition and estimate body fat percentage. Unlike simpler methods like BMI or basic body fat scales, the 7-site method provides a more comprehensive assessment by accounting for fat distribution patterns across different body regions. Research has shown this method to be accurate within 1-3% when performed correctly by trained professionals. AgeGenderSum of SkinfoldsBody DensityBody Fat %30Male110mm1.065414.6%25Female125mm1.042324.8%40Male150mm1.051219.2%35Female140mm1.038726.4%28Male120mm1.061016.5%32Female130mm1.045022.5%45Male160mm1.048521.0%38Female135mm1.040025.0%50Male170mm1.042023.5%27Female115mm1.050020.0%33Male140mm1.054518.3%29Female128mm1.046022.0%42Male155mm1.049820.3%36Female145mm1.039527.2%48Male165mm1.046722.8%31Female122mm1.043823.3%What is 7 Site Skinfold?The 7-site skinfold measurement refers to the precise assessment of subcutaneous fat thickness at seven standardized anatomical locationsThe 7-site skinfold measurement involves taking precise measurements at these key anatomical locations:Chest (diagonal fold at the midaxillary line)Midaxillary (vertical fold on the midaxillary line at nipple level)Triceps (vertical fold on the posterior midline of the upper arm)Subscapular (diagonal fold at inferior angle of the scapula)Abdominal (vertical fold 2cm right of the umbilicus)Suprailiac (diagonal fold above the iliac crest)Thigh (vertical fold at the anterior midline of the thigh)Each measurement requires careful technique, including:Grasping the skinfold firmly between thumb and forefingerPlacing caliper perpendicular to the foldTaking readings within 1-2 seconds of caliper placementRecording measurements to the nearest 0.5mmSeven Site Skinfold FormulaSeven Site Skinfold FormulaThe Jackson-Pollock formula is the most widely used equation for calculating body density from 7-site measurements. The formula varies by gender:For Men:Body Density = 1.112 - (0.00043499 × sum of skinfolds) + (0.00000055 × square of the sum of skinfolds) - (0.00028826 × age)For Women:Body Density = 1.097 - (0.00046971 × sum of skinfolds) + (0.00000056 × square of the sum of skinfolds) - (0.00012828 × age)To convert body density to body fat percentage, use the Siri equation:Body Fat % = (495 / Body Density) - 450How to Calculate 7 Site Skinfold Body Fat?The calculation process involves several systematic steps:Measurement Collection:Take measurements in millimetersPerform each measurement 2-3 timesUse the average of measurementsEnsure consistent techniqueData Input:Sum all seven measurementsRecord age and genderApply appropriate formulaLet’s walk through a practical example:Consider a 30-year-old male with these measurements (in mm):Chest: 15Midaxillary: 12Triceps: 10Subscapular: 17Abdominal: 25Suprailiac: 18Thigh: 13Step 1: Sum all measurementsTotal = 110mmStep 2: Apply the Jackson-Pollock formulaBody Density = 1.112 - (0.00043499 × 110) + (0.00000055 × 110²) - (0.00028826 × 30)= 1.0654Step 3: Convert to body fat percentage using Siri equationBody Fat % = (495 / 1.0654) - 450 = **14.6%**References:American College of Sports Medicine (ACSM) – Strength and Conditioning Association (NSCA) – Tools:Golf Index to Handicap CalculatorCaffeine CalculatorPrescription Refill CalculatorfWHR CalculatorHIIT Calories Burned CalculatorPEth Half-Life CalculatorAbi Index CalculatorVinyasa Yoga Calories Burned CalculatorTinetti Calculatormcg to IUSleep Efficiency CalculatorDrug Half-Life Calculator Thanks for visiting and reading! My name is Garth, and I would like to welcome you to my personal birding space.

Lean individuals.Same measurement sites for both men and women.Jackson-Pollock 7-Site Skinfold MethodThe most accurate of the Jackson-Pollock methods, measuring seven different sites for both men and women.Durnin-Womersley Skinfold MethodA widely used method, though it overestimates body fat in very fit individuals.Uses four skinfold sites, the same for both men and women.Each method varies in accuracy depending on body type, fitness level, and measurement precision. Choose the one that best fits your needs and equipment availability.Body Fat Percentage Calculation ResultsYour body fat percentage results will be displayed in charts based on guidelines from the American Council on Exercise (ACE), the World Health Organization (WHO) / National Institutes of Health (NIH), and the American College of Sports Medicine (ACSM).The charts also include a weight column that provides an estimated weight range for each body fat percentage category. This allows you to determine the approximate weight needed to fall into your desired range. However, these estimates assume that any weight gain or loss primarily affects body fat while keeping lean body mass constant. In reality, both lean body mass and fat mass fluctuate, though lean mass tends to change more gradually.To stay on track, it’s advisable to recalculate your body fat percentage periodically, especially as you gain or lose weight. If needed, adjust your target weight accordingly. When following a low-calorie diet, you can help preserve muscle mass by incorporating strength training exercises and increasing protein intake.STAY UP TOP DATEOur latest newsHave Questions?Frequently Asked Questions (FAQ) About Our Body Fat CalculatorWhat is a body fat percentage and why is it important?The body fat percentage indicates the amount of fat tissue in relation to your total body composition. It is an important measurement that is important for making basic statements about general health and for preventing many diseases.How accurate is your Body Fat Calculator?Our

Finger and lift this up. The skinfold should include two thicknesses; one of skin and one of the subcutaneous fat, but no muscle or fascia. Place the contact surface of the callipers at a 90 degree angle to the skinfold approximately 1cm below the fingers. Slightly release the pressure between the fingers, but remain holding the skinfold so that a greater pressure is applied by the callipers. Release the handle of the callipers and read the needle to the nearest 0.1mm approximately 4 seconds after the pressure is released.Here are some key points to remember when taking skinfold measurements:Ensure you are careful in locating the anatomical landmarks used to identify the skinfold siteTake all skinfolds on the right side of the body (for reliability)Ensure that you take the skinfold in a rotational order (circuit) and do not complete consecutive readings at each skinfold siteGrasp the skinfold firmly between your thumb and index finger of your left hand. The skinfold is lifted 1 cm and recorded with the callipers held in the right handKeep the fold elevated while the measurement is recordedTake the skinfold measurement 4 seconds after the calliper pressure is releasedTake a minimum of two measurements at each site. The acceptable range between repeated measures is 1mm. If the values vary by more than 1mm take an additional measurement and use the average of the three measurementsSkinfold measurements should not be taken when the skin is wet or after exerciseRemember age, size and state of hydration may affect skinfold measurementThe ‘Durnin and Womersley’ four-site skinfold testThe most commonly used skinfold test is the Durnin & Womersley four site test, devised in 1974 (yip – it’s pretty dated!). This test uses the sum of the triceps, biceps, subscapula and suprailiac skinfolds to produce an estimate of body fat for males and females.The following images and instructions will help you to locate the four sites used in the Durnin and Womersley test. Once you have successfully located the sites use the previous instructions on how to take a skinfold to complete the four site test.Once you have completed and recorded the measurements of the four sites, refer to the following tables for the conversion of the sum of the four skinfolds to % body fat and for a rating of the sum of the four skinfolds for males and females of normal and athletic ability.Tricep Skinfold Vertical foldLocated on the posterior