Ideal Weight Calculator
Determine your healthy weight range based on your height and gender.
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Find Your Healthy Weight Range with an Ideal Weight Calculator
Our Ideal Weight Calculator uses several popular formulas to estimate a healthy weight range based on your height and gender, providing a helpful benchmark for your fitness journey.
What is an Ideal Weight Calculator?
An Ideal Weight Calculator is a health tool that provides an estimated healthy weight range based on a person's height and gender. Unlike Body Mass Index (BMI), which gives a broad category, ideal weight formulas offer a more specific target weight range. These formulas were originally developed for medical purposes, such as calculating medication dosages, but are now widely used as a general guide for weight management and fitness goal setting.
How It Works: Common Formulas
This calculator uses several well-known formulas to provide a comprehensive estimate:
G.J. Hamwi Formula (1964):
Men: 48 kg + 2.7 kg per inch over 5 feet.
Women: 45.5 kg + 2.2 kg per inch over 5 feet.
B.J. Devine Formula (1974):
Men: 50 kg + 2.3 kg per inch over 5 feet.
Women: 45.5 kg + 2.3 kg per inch over 5 feet.
Our calculator also includes the Robinson and Miller formulas to give you a complete picture.
Interpreting Your Ideal Weight Range
The results show a range of ideal weights based on four different formulas. It's important to view this as a range rather than a single magic number. Because each formula has a slightly different methodology, they will produce slightly different results. The healthy weight for you will fall somewhere within this calculated range. Use it as a starting point for discussions with a healthcare provider, who can give a more personalized recommendation based on your body composition and overall health.
Frequently Asked Questions
What is a healthy weight?
A healthy weight is typically defined as a weight that is appropriate for your height and is associated with a lower risk of weight-related health problems. It's often represented by a BMI between 18.5 and 24.9, but ideal weight formulas like Hamwi and Devine provide a more specific range to aim for.
How do you calculate ideal weight?
Ideal weight is calculated using various formulas that are based on a person's height and gender. Common formulas include the G.J. Hamwi formula, the B.J. Devine formula, and the J.D. Robinson formula. Our calculator provides estimates from several of these methods to give you a comprehensive range.
Is ideal weight the same for men and women?
No, ideal weight formulas are different for men and women. They account for the general differences in body composition, with men typically having more muscle mass and women having a higher percentage of body fat. The formulas use a different starting weight and factor for height based on gender.
What are the limitations of ideal weight formulas?
Ideal weight formulas are a useful guideline, but they do not account for individual differences in body composition (muscle vs. fat), frame size, or age. A very athletic person with a lot of muscle may weigh more than their 'ideal' weight and still be perfectly healthy.
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