cmcalc.com

Healthy Weight Calculator


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inches

cm

result

Healthy weight range for height based on BMI is: This index is not applicable for this height
Healthy weight range for height based on Broca is This index is not applicable for this height
Healthy weight range for height based on Devine is This index is not applicable for this height

How to Use

  1. Select your gender (Male or Female).
  2. Enter your height
  3. Click the “Calculate” button to see your ideal weight.

💡 Tip: Make sure to enter accurate data for best results.

Healthy Weight Range Based on BMI

What is BMI?
Body Mass Index (BMI) is a numerical value of your weight in relation to your height. It is used as a general indicator of whether a person has a healthy body weight.

How is BMI calculated?
The formula is: BMI = weight (kg) / height² (m²).

What is considered a healthy BMI?
According to the World Health Organization (WHO), a BMI between 18.5 and 24.9 is considered healthy for most adults.

Healthy weight range for your height:
If your height is 1.70 m, your healthy weight range is approximately: 53.5 kg – 72.0 kg.

*Note: This range may not be accurate for children, elderly individuals, or those with high muscle mass. Always consult with a healthcare provider for personal evaluation.

Healthy Weight Range Based on Broca

What is the Broca Index?
The Broca Index is a simple method developed by French surgeon Paul Broca in the 19th century to estimate a person’s ideal body weight based on their height.

How is it calculated?
The formula is:

  • For men: Ideal weight (kg) = height (cm) − 100
  • For women: Ideal weight (kg) = (height (cm) − 100) × 0.85

Who is it suitable for?
The Broca Index is generally used for adults with height between 140 cm and 250 cm. It provides a quick estimation and does not consider body composition.

Example calculation:
If your height is 170 cm:
Male: 170 − 100 = 70 kg
Female: (170 − 100) × 0.85 = 59.5 kg

*Note: The Broca formula is a basic estimation and may not be accurate for athletes, children, or the elderly. Always consult with a medical professional for personalized assessment.

Healthy Weight Range Based on Devine Formula

What is the Devine Formula?
The Devine Formula was introduced by Dr. B. J. Devine in 1974 to calculate the ideal body weight (IBW) for medical dosage purposes, especially for drug calculations in clinical settings.

How is it calculated?
The formula is:

  • For men: IBW = 50 kg + 0.9 × (height in cm − 152)
  • For women: IBW = 45.5 kg + 0.9 × (height in cm − 152)

Who is it suitable for?
The Devine Formula is designed for adults with height between 152 cm and 203 cm. It is widely used in clinical practice but does not account for body fat percentage or muscle mass.

Example calculation:
If your height is 170 cm:
Male: 50 + 0.9 × (170 − 152) = 66.2 kg
Female: 45.5 + 0.9 × (170 − 152) = 61.7 kg

*Note: The Devine Formula is a clinical tool and may not reflect the ideal weight for everyone. It is best used with other assessments by healthcare professionals.

Limitations of Each Method

1. Body Mass Index (BMI)

  • Doesn’t distinguish fat from muscle: Athletes or muscular individuals may be classified as overweight or obese.
  • Ignores age and sex: Same BMI thresholds apply to men and women of all ages, which may not be accurate.
  • Not suitable for children or elderly: Growth stages and aging body composition are not considered.

2. Broca Index

  • Very simplistic: Only considers height and gender, ignoring age, frame size, and body composition.
  • Outdated: Developed in the 19th century, it doesn’t reflect modern medical and nutritional understanding.
  • Not accurate for tall or short individuals: Works best for average height (about 155–185 cm).

3. Devine Formula

  • Designed for medical dosing: Originally developed to calculate ideal weight for drug prescriptions, not general health.
  • Not personalized: Doesn’t take into account muscle mass, fat percentage, or lifestyle.
  • Limited height range: Accuracy drops outside the range of 152 cm to 203 cm (5 ft to 6 ft 8 in).

Frequently Asked Questions (FAQ)

Not always. BMI does not distinguish between fat and muscle. For example, athletes may have a high BMI due to muscle mass, not fat. It’s a general guide, not a diagnostic tool.

For children and teens, BMI is interpreted differently and uses age- and sex-specific percentiles. Adult BMI standards are not suitable for growing children.

The Broca Index is a simple and old method for estimating ideal weight based on height. It’s easy to use but doesn’t account for body composition or gender differences accurately.

Not really. It is considered most suitable for people with height between 140 cm and 250 cm. Outside this range, the formula becomes less reliable.

It was developed to help calculate proper drug dosages based on ideal body weight, particularly in clinical and hospital settings.

No. It’s primarily designed for adults with average body composition. It may not be accurate for children, pregnant women, athletes, or those with very high or low muscle mass.