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7-Site Skin Fold Test Calculator for Calculating Body Fat Percentage

Calculator Preferences
7-Site Skin Fold Test Calculator Sign
7-Site Skin Fold Test Calculator

This weight-loss calculator can be used to quickly calculate your body fat percentage when using a skinfold caliper to perform a 7-site skin fold test. The pop-up tips include directions and images showing how and where the skin fold tests are taking from -- for both males and females. The Learn tab includes:

  • 7-site skinfold testing formulas for both genders.
  • Body fat percentage categories chart.
Learn More

Selected Data Record:

A Data Record is a set of calculator entries that are stored in your web browser's Local Storage. If a Data Record is currently selected in the "Data" tab, this line will list the name you gave to that data record. If no data record is selected, or you have no entries stored for this calculator, the line will display "None".

DataData recordData recordSelected data record: None
Units:Units:Measurement:Preferred units of measurement:

Units of measurement:

Select your preferred units of measurement. Note that since calipers typically measure in millimeter increments, your preferred measurement selection only affects the weight related entries and results. All other measurements must be entered as millimeters (mm).

Gender:Gender:Gender:Gender:

Gender:

Select male or female. This will change the underlying body fat percentage calculation to the appropriate formula.

Age:Age:Age:Age:

Age:

Enter your current age.

Weight:Weight:Weight:Weight:

Weight:

Enter your weight in your chosen unit of measurement. Pounds for standard and kilograms for metric.

Chest avg:Chest avg:Chest average:Chest (pectoral) average:
Enter 3 Chest Measurements
1st
2nd
3rd

Chest (pectoral):

Enter the average (in millimeters) of three chest caliper tests, or click the button to enter three measurements and have the calculator compute the average for you -- plus enter it into the appropriate field.

The pinch is taken between the nipple and the armpit (axilla) but closer to the armpit, approximately 1/3 the distance. The skin fold is a diagonal one in the direction of nipple-armpit line.

7-Site Skin Fold Test Calculator: Female pectoral caliper measurement
7-Site Skin Fold Test Calculator: Male pectoral caliper measurement
Belly avg:Belly avg:Belly average:Belly (abdomen) average:
Enter 3 Belly Measurements
1st
2nd
3rd

Belly (abdomen):

Enter the average (in millimeters) of three belly caliper tests, or click the button to enter three measurements and have the calculator compute the average for you -- plus enter it into the appropriate field.

A vertical or horizontal fold is taken 2 centimeters to the right of the bellybutton (umbilicus). The vertical pinch is mostly used as the fat folds easier with most people. Some might find the horizontal pinch to fold easier. Use the direction that allows the most comfortable measurement.

7-Site Skin Fold Test Calculator: Female abdominal caliper measurement
7-Site Skin Fold Test Calculator: Male abdominal caliper measurement
Thigh avg:Thigh avg:Thigh average:Thigh (quadriceps) average:
Enter 3 Thigh Measurements
1st
2nd
3rd

Thigh (quadriceps):

Enter the average (in millimeters) of three thigh caliper tests, or click the button to enter three measurements and have the calculator compute the average for you -- plus enter it into the appropriate field.

The skin fold here should be taken in the front, halfway from the upper part of the knee (proximal patella, where it corners when the leg is bend) and the fold above the thigh when the leg is raised (inguinal fold). The vertical fold should be pinched a little harder as fat and skin tissue in this area tends to be somewhat firmer. The thigh skin fold may therefore overestimate fat content.

7-Site Skin Fold Test Calculator: Female thigh caliper measurement
7-Site Skin Fold Test Calculator: Female thigh caliper measurement
Tric avg:Tric avg:Tricep average:Tricep (upper arm, back) average:
Enter 3 Tricep Measurements
1st
2nd
3rd

Tricep (upper arm, back):

Enter the average (in millimeters) of three tricep caliper tests, or click the button to enter three measurements and have the calculator compute the average for you -- plus enter it into the appropriate field.

Pinch a vertical skin fold halfway the upper arm. If you want to be more precise, use a tape between the bony top of the shoulder or acromiale (do not confuse it with the bony upper part of the shoulder blade!) and the most prominent tip of the elbow (radiale). Mark a dot or a horizontal line at half the measured distance, that is where the vertical fat fold should be pinched. Face the hand palm forward.

7-Site Skin Fold Test Calculator: Female tricep caliper measurement
7-Site Skin Fold Test Calculator: Male tricep caliper measurement
Subs avg:Subs avg:Subscapula average:Subscapula (shoulder blade, lower tip) avg:
Enter 3 Subscapula Measurements
1st
2nd
3rd

Subscapula (shoulder blade, lower tip):

Enter the average of three subscapular caliper tests, or click the button to enter three measurements and have the calculator compute the average for you -- plus enter it into the appropriate field.

Locate the bottom tip of the shoulder blade (scapula) by moving the arm behind the back. Move the arm back to its original position. Take the skin fold at approximately 2 centimeters below the bottom tip at an angle of 45 degrees, almost parallel to the inside angle of the shoulder blade.

7-Site Skin Fold Test Calculator: Female subscapular caliper measurement
7-Site Skin Fold Test Calculator: Male subscapular caliper measurement
Hip avg:Hip avg:Hip average:Hip (suprailiac or iliac crest) average:
Enter 3 Hip Measurements
1st
2nd
3rd

Hip (suprailiac or iliac crest):

Enter the average of three hip caliper tests, or click the button to enter three measurements and have the calculator compute the average for you -- plus enter it into the appropriate field.

This skin fold is right below the front or anterior part of the armpit (axilla). From here follow a vertical line until you hit the hipbone. The skin fold is an angled one (approx. 45 degrees going up and away from the body) 2 centimeters right above the iliac crest. The fold spot should be between the top of the hipbone on the side and the bony part on the lower right of the belly, which is still the same hipbone.

7-Site Skin Fold Test Calculator: Female suprailiac caliper measurement
7-Site Skin Fold Test Calculator: Male suprailiac caliper measurement
Midax avg:Midax avg:Midaxillary average:Midaxillary (armpit at fifth rib) average:
Enter 3 Midaxillary Measurements
1st
2nd
3rd

Midaxillary (armpit at fifth rib):

Enter the average (in millimeters) of three midaxillary caliper tests, or click the button to enter three measurements and have the calculator compute the average for you -- plus enter it into the appropriate field.

This fold is taken on the side of the torso, horizontally or vertically at the fifth rib. The most common however is a vertical fold. Its position can be determined by locating the lower tip of the breast bone (xiphoid process) and following a horizontal line to the side of the torso until you are right below the arm pit (axilla). The arm should be raised at approximately chest height.

7-Site Skin Fold Test Calculator: Female midaxillary caliper measurement
7-Site Skin Fold Test Calculator: Male midaxillary caliper measurement
Body fat %:Body fat %:Body fat percent:Body fat percentage:

Body fat percentage:

Based on your entries, this is your calculated body fat percentage.

Fat wgt:Fat weight:Body fat in weight:Body fat in weight:

Body fat in weight:

Based on your entries, this is the calculated weight of your body fat listed in your preferred unit of weight (standard or metric).

Lean wgt:Lean weight:Lean body weight:Lean body weight:

Lean body weight:

Based on your entries, this is the calculated weight of your lean body weight listed in your preferred unit of weight (standard or metric).

If you would like to save the current entries to the secure database, tap or click on the Data tab, select "New Data Record", give the data record a name, then tap or click the Save button. To save changes to previously saved entries, simply tap the Save button. Please select and "Clear" any data records you no longer need.

Feedback AppreciatedFeedback Greatly AppreciatedYour Feedback Would Be Greatly AppreciatedYour Feedback Is Greatly Appreciated
Heading

Tip

Help and Tools

Help and Tools:

This section, which you can Unstick or Hide in the Calculator Preferences (just above the top of the calculator), contains the following tabs (content too long to fit within bordered frame can be scrolled up and down):

About: Click this tab for an introduction to the calculator.

Instructions: Click this tab for step-by-step instructions for using the calculator.

Terms: Click this tab for a list of the descriptions that are located within each popup help button (info icons).

PCalc: Click this tab for a handy "pocket" calculator you can use when you need to calculate an entry needed for the calculator.

Data: Click this tab to save a set of entries or a note in between visits. Entries and notes will be stored to your web browser's local storage (if supported by your browser of choice), meaning they can only be recalled with the same device and web browser you were using when you saved them. If you'd like to save entries and notes between devices you can do so by subscribing to the Ad-Free Member Version.

 
 
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Also note that some calculators will reformat to accommodate the screen size as you make the calculator wider or narrower. If the calculator is narrow, columns of entry rows will be converted to a vertical entry form, whereas a wider calculator will display columns of entry rows, and the entry fields will be smaller in size ... since they will not need to be "thumb friendly".

Show/Hide Popup Keypads:

Select Show or Hide to show or hide the popup keypad icons located next to numeric entry fields. These are generally only needed for mobile devices that don't have decimal points in their numeric keypads. So if you are on a desktop, you may find the calculator to be more user-friendly and less cluttered without them.

Stick/Unstick Tools:

Select Stick or Unstick to stick or unstick the help and tools panel. Selecting "Stick" will keep the panel in view while scrolling the calculator vertically. If you find that annoying, select "Unstick" to keep the panel in a stationary position.

If the tools panel becomes "Unstuck" on its own, try clicking "Unstick" and then "Stick" to re-stick the panel.