
Finding your ideal weight can be a real puzzle, especially for men who are 1.70 m tall. The optimal weight depends on several factors, including body type and level of physical activity. Medical recommendations often suggest referring to the Body Mass Index (BMI) for an initial estimate.
BMI is not the only indicator to consider. Nutrition experts also recommend taking into account muscle mass, fat distribution, and waist circumference. A man who is 1.70 m tall with good musculature may weigh more than another without being overweight.
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Calculate your ideal weight using the Lorentz formula
The Lorentz formula is a widely used method for determining ideal weight based on height. It provides a more accurate estimate than BMI by incorporating parameters specific to the individual’s body type.
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Lorentz Formula
For a man, the Lorentz formula is calculated as follows:
- Ideal weight = Height in cm – 100 – [(Height in cm – 150) / 4]
Taking the specific case of a man who is 1.70 m tall, the formula becomes:
- Ideal weight = 170 – 100 – [(170 – 150) / 4]
- So: Ideal weight = 70 – 5 = 65 kg
To answer the question what weight for 1.70 m man, the Lorentz formula indicates an ideal weight of about 65 kg.
Other calculation formulas
Other formulas exist to refine this estimate, including:
- Broca Formula: Ideal weight = Height in cm – 100
- Creff Formula: Takes into account body type and age
- Monnerot-Dumaine Formula: Uses wrist circumference
- Bornhardt Formula: Takes into account chest circumference
Each of these formulas offers a different nuance, allowing for adjustments based on individual characteristics. Using multiple methods can provide a more comprehensive view of ideal weight.

Why consult a healthcare professional to determine your ideal weight
Consulting a healthcare professional, whether a doctor, nutritionist, or dietetician, is essential for accurately and personally assessing ideal weight. These experts consider not only biometric data but also clinical and psychological parameters specific to each individual.
Clinical and personalized assessment
An assessment by a professional allows for the consideration of various factors such as:
- BMI: The body mass index is a measurement tool recognized by the World Health Organization.
- Medical history: Understanding health history to tailor recommendations.
- Body type: Formulas like those of Creff take into account body type and age.
Prevention of health risks
A doctor or nutritionist can identify medical conditions related to non-optimal weight, such as:
- Overweight: Increases the risks of diabetes, osteoarthritis, and high blood pressure.
- Malnutrition: Can lead to serious nutritional deficiencies.
Global and integrated approach
Consider the importance of an integrated approach. A personal trainer can complement the assessment by offering tailored exercise programs, thus helping to achieve ideal weight in a healthy and sustainable manner. Dietary advice from a dietetician ensures optimal nutritional balance, avoiding potentially dangerous pitfalls of unregulated diets.