IBW formulas + BMI range

Ideal Weight for 191cm (6'3")

Reference weight estimated with four commonly used ideal body weight formulas: Devine, Robinson, Miller and Hamwi. The healthy range is derived separately from the standard adult BMI range.

67.5 kg

Min healthy weight

83.1 kg

Ideal weight (men)

77 kg

Ideal weight (women)

90.8 kg

Max healthy weight

Ideal Weight Results

👨 Men
👩 Women

83.1

kilograms

Ideal weight for men at 191cm (average of 4 formulas)

67.5 kg

Min healthy

83.1 kg

Ideal weight

90.8 kg

Max healthy

UnderweightNormalOverweightObese

Ideal weight 83.1 kg falls within the healthy BMI range

👨 Men

83.1 kg

67.5–90.8 kg

183.3 lbs

👩 Women

77 kg

67.5–90.8 kg

169.7 lbs

Ideal weight for a 191 cm woman

Healthy range 67.5–90.8 kg (148.8–200.3 lb); the four-formula average is 77 kg (169.7 lb).

Ideal weight for a 191 cm man

Healthy range 67.5–90.8 kg (148.8–200.3 lb); the four-formula average is 83.1 kg (183.3 lb).

In feet and inches, 191 cm is about 6'3". See ideal weight for 6'3" in pounds.

Reference Weight by 4 Common IBW Formulas

FormulaYearMen (kg)Women (kg)

Devine

Developed for drug-dosing calculations

19748580.5

Robinson

Regression-based

198380.974.8

Miller

Regression on updated insurance tables

198377.673.8

Hamwi

Quick estimation rule (1964)

19648978.9
Recommended Average—83.177

BMI Categories for 191cm Height

These weights are calculated specifically for someone 191cm tall

🔵 Underweight

BMI < 18.5

Under 67.5 kg

🟢 Healthy

BMI 18.5 — 24.9

67.5 — 90.8 kg

🟠 Overweight

BMI 25 — 29.9

90.9 — 109.1 kg

🔴 Obese

BMI ≥ 30

Over 109.1 kg

How to Calculate Ideal Weight for 191cm

1

Convert height to inches

191 cm ÷ 2.54 = 75.2 inches (6'3")
2

Inches above 5 feet (60 in)

75.2 − 60 = 15.2 inches above 5ft
3

Apply Devine formula (most used)

Men: 50 + (2.3 × 15.2) = 85 kgWomen: 45.5 + (2.3 × 15.2) = 80.5 kg
4

Verify with BMI

BMI = 85 ÷ (1.91)² = 22.8 ✅ Within healthy range

About the 4 Medical Formulas

Hamwi (1964)

The earliest formula, developed by Dr. G.J. Hamwi in 1964 for clinical nutrition. Published via the American Diabetes Association .

Devine (1974)

Developed by Dr. B.J. Devine in 1974 for drug dosage calculations. It later became a common reference-weight estimate.

Robinson (1983)

Developed by Dr. J.D. Robinson in 1983 using regression analysis of Metropolitan Life Insurance data. Gives values close to Devine.

Miller (1983)

Developed by Dr. D.R. Miller in 1983 using updated Metropolitan Life tables. Typically produces the highest values.

Why Does Ideal Weight Differ Between Men and Women?

At 191 cm the four formulas give men about 6.1 kg more than women, because each formula uses different constants for men and women, derived from historical height–weight data (on average men carry more lean and bone mass). The BMI-based healthy range is the same for both sexes at the same height.

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Frequently Asked Questions

What is the ideal weight for 191cm?↓
The ideal weight for 191cm (6'3") ranges from 67.5 to 90.8 kg for men, and 67.5 to 90.8 kg for women. This range is based on a healthy BMI of 18.5–24.9 per WHO classification guidelines.
What is the ideal weight for a woman at 191cm?↓
For a woman at 191cm, the ideal weight ranges from 67.5 to 90.8 kg. The average of 4 common formulas (Devine, Robinson, Miller, Hamwi) is 77 kg. Individual results may vary based on muscle mass and body frame.
Is 94 kg a healthy weight for 191cm?↓
A weight of 94 kg at 191cm gives a BMI of approximately 25.7, which falls in the overweight range (25–29.9). Working toward the healthy range (67.5–90.8 kg) through balanced nutrition and exercise is recommended.
How do I calculate BMI for 191cm height?↓
BMI = weight (kg) ÷ height (m)². For 191cm (1.91m): BMI = your weight ÷ 3.6481. Example: if you weigh 83.1 kg, your BMI = 22.8 — within the healthy range (18.5–24.9).
What is the difference between Devine, Robinson, Miller and Hamwi formulas for 191cm?↓
For men at 191cm: Devine = 85 kg, Robinson = 80.9 kg, Miller = 77.6 kg, Hamwi = 89 kg. For women: Devine = 80.5 kg, Robinson = 74.8 kg, Miller = 73.8 kg, Hamwi = 78.9 kg. Using the average of all four gives the most balanced estimate.
How do I reach my ideal weight at 191cm?↓
To reach the ideal weight (83.1 kg for men, 77 kg for women) at 191cm: calculate your daily calorie needs using a TDEE calculator, then create a deficit of no more than 500 calories/day to safely lose 0.5 kg per week. Incorporate strength training 3×/week to preserve muscle mass.

BMI at 191 cm by weight

Weight (kg)BMICategory
5515.1Underweight
6016.4Underweight
6517.8Underweight
7019.2Healthy
7520.6Healthy
8021.9Healthy
8523.3Healthy
9024.7Healthy
9526Overweight
10027.4Overweight
10528.8Overweight
11030.2Obesity class 1
11531.5Obesity class 1
12032.9Obesity class 1
12534.3Obesity class 1
13035.6Obesity class 2
13537Obesity class 2
14038.4Obesity class 2
14539.7Obesity class 2
15041.1Obesity class 3

Standard adult BMI cut-offs (18+). They do not apply to children and teenagers.

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📚 Scientific References

  1. [1]Hamwi GJ. Therapy: changing dietary concepts. American Diabetes Association. 1964.
  2. [2]Devine BJ. Gentamicin therapy. Drug Intelligence & Clinical Pharmacy. 1974;8:650–5.
  3. [3]Robinson JD et al. Determination of ideal body weight for drug dosage calculations. Am J Hosp Pharm. 1983;40:1016–9.
  4. [4]Miller DR et al. Determining ideal body weight (and mass). Am J Hosp Pharm. 1983;40:1622–5.
  5. [5]WHO BMI Classification — Global Nutrition Monitoring Framework.
  6. [6]NHLBI. Aim for a Healthy Weight. National Heart, Lung, and Blood Institute.
  7. [7]Pai MP, Paloucek FP. The origin of the 'ideal' body weight equations. Ann Pharmacother. 2000;34(9):1066–9.
  8. [8]Peterson CM et al. Universal equation for estimating ideal body weight. Am J Clin Nutr. 2016;103(5):1197–203.

⚕️ Medical Disclaimer

These figures are educational estimates based on common ideal body weight formulas and the adult BMI range. They are not a substitute for personal medical assessment. Healthy weight is influenced by individual factors including muscle mass, bone density, age, and health status. Consult your physician or registered dietitian for a personalized evaluation.