Shoulder Girth Calculator
Quick Answer
This calculator measures and analyzes your shoulder girth (circumference), comparing it to athletic standards and calculating your shoulder-to-waist ratio for V-taper assessment.
- Calculates shoulder circumference in cm and inches instantly
- Compares to gender-specific athletic population standards
- Includes optional shoulder-to-waist ratio for physique assessment
How to Measure Shoulder Girth
Girths are circumference measures at standard anatomical sites around the body. The shoulder girth measurement is a measure of the circumference around the shoulders a couple of inches below the top of the shoulder, going around the arms, chest and back. This measure of shoulder girth will also be affected by the musculature around the shoulder as well as the chest size. There is also a description of the chest girth measurement. See the list of girth measurement locations.
Purpose
To measure the body circumference at the level of the shoulders, as a measure of body proportion and the size of the chest muscles and lung size.
Equipment Required
Flexible (but not stretchy) metal tape measure and pen suitable for marking the skin. If a plastic or cloth tape is used, it should be checked regularly against a metal tape as they may stretch over time.
Pre-Test Preparation
Explain the test procedures to the subject. Prepare forms and record basic information such as age, height, body weight, gender. See more details of pre-test procedures.
Measurement Procedure
This measurement is taken at a level two inches below the top of the shoulder and around the arms, chest, and back. After the tape is in position, the arms should be relaxed and hanging by the side, and the measurement taken at the end of a normal expiration. When recording, you need to make sure the tape is not too tight or too loose, is lying flat on the skin, and is horizontal, particularly around the back.
Reliability Factors
Factors that may affect reliability include changes to the testing personnel, constant and even tension on the tape, and correct landmarking (finding the correct anatomical site for measurement).
Advantages
Low costs involved in the testing procedure.
Important Comments
Clothing over the site should be removed if possible to make sure measuring tape is positioned correctly and that the correct circumference is determined. For this girth measurement, due to the location of the measure, care should be taken to maintain the personal privacy of the subject, and sometimes it is appropriate to measure over clothing. If so, this should be recorded with the results.
Shoulder Girth Standards for Athletes
Understanding where your shoulder girth falls compared to athletic populations can help track training progress and set realistic goals. The following standards are based on anthropometric research and athletic population data.
| Classification | Male (cm) | Male (inches) | Female (cm) | Female (inches) |
|---|---|---|---|---|
| Below Average | < 100 | < 39 | < 90 | < 35 |
| Average | 100 - 117 | 39 - 46 | 90 - 100 | 35 - 39 |
| Above Average | 117 - 130 | 46 - 51 | 100 - 112 | 39 - 44 |
| Elite Athletic | > 130 | > 51 | > 112 | > 44 |
Understanding Your Shoulder-to-Waist Ratio
The shoulder-to-waist ratio is a key metric for assessing the V-taper physique prized in many sports. Research indicates that a shoulder-to-waist ratio of 1.6:1 or greater is typically considered ideal for men, creating the classic V-shaped torso that bodybuilders and athletes work to achieve.
Ideal Ratio for Men
1.6:1 or greater. This creates the classic V-taper associated with athletic and powerful physiques.
Ideal Ratio for Women
1.4:1 is typically considered athletic and aesthetically balanced for female athletes.
Improving Your Ratio
Focus on building shoulder, lat, and upper back muscles while maintaining a lean waist through diet and core training.
Sport-Specific Shoulder Girth Applications
Strength Sports
In powerlifting, bodybuilding, and strongman competitions, shoulder girth is a key indicator of upper body muscular development. Elite male bodybuilders typically have shoulder circumferences exceeding 130 cm (51 inches), with some reaching 140+ cm (55+ inches).
Combat Sports
Wrestlers, boxers, and MMA fighters benefit from broader shoulders for grappling leverage and punch power. Shoulder girth also factors into weight class considerations, as upper body mass significantly contributes to overall bodyweight.
Swimming
Competitive swimmers often have naturally broad shoulders, which provide mechanical advantages for pulling through water. Olympic swimmers frequently display shoulder-to-waist ratios exceeding 1.7:1.
Team Sports
In football (American), rugby, and hockey, broader shoulders contribute to physical presence and collision dominance. Position-specific standards vary, with linemen and forwards typically having larger measurements than skill position players.
How to Increase Shoulder Girth
Shoulder girth can be increased through targeted resistance training over time. While bone structure (clavicle width) is genetic, muscle mass around the shoulders, chest, and upper back can be developed significantly.
Key Exercises
Overhead press, lateral raises, face pulls, rows, pull-ups, and bench press all contribute to increased shoulder circumference.
Expected Progress
Most individuals can add 5-10 cm (2-4 inches) to their shoulder circumference through 2-4 years of consistent training.
Training Focus
Prioritize lateral deltoids for width, upper back for thickness, and maintain low body fat for definition.
Frequently Asked Questions
What is a good shoulder girth measurement?
For adult males, the average shoulder circumference is approximately 117 cm (46 inches). Measurements between 117-130 cm (46-51 inches) are considered above average, while elite athletes often measure above 130 cm (51+ inches). For females, average is around 100 cm (39 inches), with above average being 100-112 cm.
How do you measure shoulder girth accurately?
Position the tape at a level two inches below the top of the shoulder, wrapping around the arms, chest, and back. Keep arms relaxed at your sides and take the measurement at the end of a normal exhalation. Ensure the tape remains horizontal and flat against the skin without compressing tissue.
What is an ideal shoulder-to-waist ratio?
Research suggests a shoulder-to-waist ratio of 1.6:1 or greater is considered ideal for men, creating the classic V-taper physique. For women, ratios around 1.4:1 are typically considered attractive and athletic. The legendary bodybuilder Steve Reeves had a ratio of 1.47, considered exceptional.
Can shoulder girth be increased through training?
Yes, shoulder girth can be increased through resistance training targeting the deltoids, upper back, and chest. Key exercises include overhead presses, lateral raises, rows, and pull-ups. Most people can add 5-10 cm (2-4 inches) to their shoulder circumference through 2-4 years of dedicated training.
Why is shoulder girth important for athletes?
Shoulder girth reflects upper body muscular development, chest size, and lung capacity. For athletes in sports like swimming, wrestling, football, and bodybuilding, broader shoulders provide mechanical advantages and are associated with greater upper body strength, power, and athletic performance.
How often should I measure my shoulder girth?
For tracking training progress, measure monthly using consistent technique. Take measurements at the same time of day, ideally in the morning before training. Record whether measured over clothing or bare skin, and always use the same measuring tape for consistency.
What factors affect shoulder girth besides muscle mass?
Shoulder girth is influenced by clavicle width (genetic), muscle development (trainable), body fat distribution, posture, and measurement technique. Lung capacity also contributes, as the measurement wraps around the chest. Athletes with naturally wide clavicles have a structural advantage for developing impressive shoulder circumference.
References
- Gordon, C.C., et al. (1988). "Anthropometric Survey of U.S. Army Personnel." U.S. Army Natick Research Center.
- McDowell, M.A., et al. (2008). "Anthropometric Reference Data for Children and Adults: United States, 2003-2006." National Health Statistics Reports.
- Hughes, L.Y. (1985). "Biomechanical Analysis of the Shoulder Joint." Journal of Sports Sciences.
- Lohman, T.G., et al. (1988). "Anthropometric Standardization Reference Manual." Human Kinetics.
- Marfell-Jones, M., et al. (2006). "International Standards for Anthropometric Assessment." ISAK.
- Butt, C. (2010). "The WeighTrainer: Your Maximum Muscular Bodyweight and Measurements." WeighTrainer.net.
- Sweeney, M.E., et al. (2014). "Physical Characteristics of NCAA Division I Football Players." Journal of Strength and Conditioning Research.
Similar Tests
Related Pages
Girth Measurements
General description of taking girth measurements, and links to other girth measures.
Learn More →Scout Fitness Badge
This measurement is part of the US Scout's Personal Fitness Merit Badge.
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