## Understanding Ideal Body Weight (IBW)

Determining your ideal body weight (IBW) involves considering various factors such as height, sex, and muscle mass. The IBW calculator employs multiple formulas to provide a range of estimates, acknowledging the variability in individual circumstances.

## Formulas for Men

For men, the IBW calculator uses several formulas:

**Robinson Formula:**- 52 kg + 1.9 kg per inch over 5 feet.

**Miller Formula:**- 56.2 kg + 1.41 kg per inch over 5 feet.

**Hamwi Formula:**- 48.0 kg + 2.7 kg per inch over 5 feet.

**Devine Formula:**- 50.0 kg + 2.3 kg per inch over 5 feet.

**Broca Formula:**- Height [cm] – 100.

**Lorentz Formula:**- (Height [cm] – 100) – (Height [cm] – 150)/4.

## Formulas for Women

For women, the IBW calculator utilizes the following formulas:

**Robinson Formula:**- 49 kg + 1.7 kg per inch over 5 feet.

**Miller Formula:**- 53.1 kg + 1.36 kg per inch over 5 feet.

**Hamwi Formula:**- 45.5 kg + 2.2 kg per inch over 5 feet.

**Devine Formula:**- 45.5 kg + 2.3 kg per inch over 5 feet.

**Broca Formula:**- Height [cm] – 100.

**Lorentz Formula:**- (Height [cm] – 100) – (Height [cm] – 150)/2.

## Peterson Formula

Additionally, the Peterson formula is applied, offering an alternative perspective:

- (2.2 × target BMI) + (3.5 × target BMI × (height [m] – 1.5)).

This formula is independent of gender, with the default target BMI set at 22.

## Body Mass Index (BMI) and Weight Range

The Body Mass Index (BMI) is a key indicator, calculated as weight/height². The optimal BMI range falls between 18.5 and 24.9. The IBW calculator converts BMI into a weight range, providing a practical interpretation for users.

## Limitations and Considerations

While these formulas offer estimates, it’s crucial to acknowledge their limitations. The values are not universally applicable, and maintaining a BMI within the normal range is more significant than adhering strictly to a specific weight. The calculator is intended for adults only and not suitable for children or pregnant individuals.

## Frequently Asked Questions (FAQ)

#### How to Calculate Ideal Body Weight in Pounds?

To calculate ideal body weight in pounds, the modified Devine formula is applied:

- For men: 110.23 lb + 5.1 lb per inch over 5 feet.
- For women: 100.3 lb + 5.1 lb per inch over 5 feet.

#### Which Ideal Body Weight Formula is Best?

The Devine formula is the most medically validated and widely used by physicians for drug dosage calculations.

#### What is the Ideal Weight for a Female?

The Devine formula for females provides an estimation in both kilograms and pounds, taking into account height.

#### What is the Ideal Weight Loss for a Month?

For safe and sustainable weight loss, aim for a pace of 0.25-0.5 kg (0.55-1.1 lb) per week, not exceeding 1-2 kg (2.2-4.4 lb) per month.

#### How Do You Calculate Your Ideal Body Weight?

Utilize the Devine formula, a straightforward calculation requiring only your height. This formula is widely accepted and validated in medical settings.