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How do you calculate your ideal weight using Bornhardt’s formula? In addition to height, the Monnerot-Dumaine and Bornhardt’s formulas have included additional body measurements for a more precise calculation. Bornhardt, for instance, incorporated chest circumference to tailor the estimate to each person’s unique build, to ensure a more accurate calculation of the ideal weight for a person in good health.
For a more precise calculation of your ideal weight, other tools are available on our site, such as the Monnerot-Dumaine formula with wrist circumference, the Creff formula which takes into account body shape and age , or the Lorentz formula (sex/height).
Other REGIVIA calculation tools:
- Ideal Body Weight Calculator
- Body Mass Index (BMI) Calculator
- Body Fat Percentage (BFP) Calculator
- Calories Per Meal Calculator
- Daily Calorie Intake to Lose Weight Calculator
- How to Lose Weight?
How do you calculate your ideal body weight using Bornhardt’s formula?
The Bornhardt formula dates back to 1891. This formula was originally created to determine the build of people enlisted in the army, and thus their physical aptitude for military service. Less popular than Broca ‘s formula (another formula for calculating ideal weight, which takes height alone into account), it is nonetheless a more reliable way of approximating ideal weight, since it takes the individual’s silhouette into consideration.
According to Bornhardt’s formula, ideal weight is calculated on the basis of two parameters:
- Height in centimetres
- Chest circumference
Discover the formula:
Ideal weight (in lbs) = ((Height (in feet) x Chest circumference (in cm)) / 240
The pros and cons of Bornhardt’s formula:
Advantages: it incorporates chest circumference in the calculation of ideal weight, and to some extent muscle mass.
Disadvantages : this calculation formula is approximate.
All the formulas for calculating your ideal weight
The Lorentz formula, created by Dr Friedrich Lorentz (a member of the Department of Sports Hygiene at the Hamburg Institute) in 1929, is based on the Broca Index and it contains additional parameters, such as the person’s height and sex.
Advantage: It is the most common formula used these days to estimate your ideal weight.
Disadvantage: It’s an approximate formula as it does not take into account age or morphology.
Ideal weight for men(in lbs) = Height (in feet) – 100 – ((height in feet – 150) /4))
Ideal weight for women(in lbs) = Height (in feet) – 100 – ((Height in feet – 150) /2.5))
The Body Mass Index (BMI) is based on a weight-to-height ratio and it is used to determine and assess the risks associated with being underweight or obese.
In order to provide an even more accurate estimate of your ideal weight, this formula takes into account another parameter in addition to your height: your bone structure.
Advantage: It includes bone structure into its calculation, and muscle mass to a certain extent.
Disadvantage: The calculation formula is approximate.
Ideal weight (in lbs) = (Height in feet – 100 + 4 x Wrist circumference in inches) / 2
This is the oldest formula to calculate your ideal body weight: It was invented by Dr Paul Broca, a French surgeon, in 1871.
Advantage: It’s a simple formula that is easy to calculate.
Disadvantage: It’s an approximate calculation: It overestimates weight, not only for women, but also for anyone who is taller than 5 feet.
Ideal weight (in lbs) = Height (in feet) – 100
Dating back to 1891, Bornhardt’s formula was originally devised to determine the build of people enrolled in the army and thus determine their physical aptitude for military service. Although less popular than Broca’s Index, it is nonetheless more reliable and accurate, since it takes into account the individual’s specific build.
Advantage: It includes the chest circumference and, to a certain extent, muscle mass.
Disadvantage : It’s an approximate calculation.
Ideal weight (in lbs) = ((Height (in feet) x Chest circumference (in cm)) / 240
The formula was created by Professor AF Creff in the 1970s, and it offers a precise calculation of your ideal weight, provided that you have an accurate estimate of your body shape and type.
Advantage: It incorporates body morphology into its calculation, in addition to height and age.
Disadvantage: This formula is based on the distinction between “normal”, “broad” and “slender” people. These notions are relatively vague and subjective and thus the calculation remains fairly approximate.
For an individual with a “normal” build:
Ideal weight (in lbs) = Height (in feet) – 100 + (Age (in years) /10) x 0.9
For an individual with a “large” build:
Ideal weight (in lbs) = Height (in feet) – 100 + (Age (in years) /10) x 0.9 x 1.1
For an individual with a “slender” build:
Ideal weight (in lbs) = Height (in feet) – 100 + (Age (in years) /10) x 0.9 x 0.9
This formula was devised by Dr B.J. Devine in 1974. It was originally designed for medicinal dosage purposes. Widely used in English-speaking countries, this formula was employed by major medical and pharmaceutical houses between 1974 and 2000.
Advantage: It allows a given height, measured in feet, to be converted into an ideal weight, in lbs.
Disadvantage: The formula does not take age into account, thus it remains approximate.
Ideal weight for men (in lbs) = 50 (lbs) + 2.3 x [Height (in feet) – 60]
Ideal female weight (in lbs) = 45.5 (lbs) + 2.3 x [Height (in feet)- 60]
* one foot represents 30 centimeters.
The Perrault Formula is also a variation of Broca’s formula.
Advantage: This formula takes age into account.
Disadvantage: It does not take sex into account. However, it’s a very approximate calculation.
Ideal weight (in lbs) = Height (in feet) – 100 + (age (in years)/10) x 0.9
