# Wrist Circumference Formula – Ideal Body Proportions (John McCallum)

Exercise Daily – Know your ideal body proportions based on the wrist circumference formula by John McCallum.

Note: To get your ideal body proportions, provide your wrist measurement in either centimeter (cm) or inches (Inch).

John McCallum was among the most well-known and regarded authors of the 1960s and 1970s, contributing his “Keys to Progress” column to the magazine “Strength and Health” for more than a decade.

We can compute accurate measurements of gains in bodybuilding for the major muscle groups of the body using the John McCallum formula, which is based on the measurement of the pulse. And here’s what we came up with:

• 6.5 waist girth is a chest girth.
• Waist girth equals 70% of the chest.
• 53% of the chest is equal to hip girth.
• The neck is equal to 37% of chest girth.
• Biceps are equal to 36% of chest girth.
• The lower leg is equal to 34%.
• Forearm girth is equal to 29% of chest girth.

However, this formula may not give accurate measurements to everyone since everyone has a different bone size that ultimately decides your wrist’s circumference.

## How Does Wrist Circumference Formula Work?

To use the tool, you must first input the girth of your wrist in centimeters or inches (cm/inch). The tool will then propose optimal dimensions for all areas of your body.

The computation is based on the formula developed by John McCallum, a well-known methodist. A common reason for this formula’s popularity is that there is a strong link between the wrist and the rest of the body. Although the objectives appear to be a little difficult at first glance, several studies have found them to be achievable.

Centimeters and inches are both acceptable units of measurement in the tool since the results are multiples of the value you enter.

If you liked this tool based on the Wrist Circumference Formula, then try Exercise Daily’s other body tools as well. Some of them include the following: