What is the ideal body weight (IBW)? It’s more than just a number on a scale. It’s an estimate of a healthy weight range based on key factors like your height and gender. While many formulas exist, our calculator uses the widely respected Devine formula to give you a reliable starting point. Understanding your IBW is the first step in setting realistic fitness goals and can help you assess your health. Use this ideal body weight calculator to get a personalized estimate and learn what it means for you.

Why Knowing Your Ideal Body Weight Matters

Your ideal body weight is a helpful guideline to see if you’re within a healthy range for your height. Doctors, dietitians, and fitness experts often use IBW as a quick reference when planning diets or health programs. While it’s not a perfect measure, it gives you a starting point to understand if you may be underweight, at a healthy weight, or above the recommended range.

How to Use the Calculator

Select your gender.
Enter your height (and weight if required).
Click calculate to see your estimated IBW (Ideal Body Weight).

The result will show you how your current weight compares with standard formulas. This tool works instantly on desktop or mobile.

How the Ideal Body Weight is Calculated

This calculator uses well-known medical formulas, including the Devine, Hamwi, and Robinson equations. Each formula provides a slightly different estimate based on height and gender. These are widely used in healthcare and nutrition to quickly check a recommended weight range.

For Men: The formula starts with a baseline of 50 kg for the first 5 feet (152 cm) of height, then adds 0.9 kg for each additional centimeter.
For Women: The formula is similar but starts with a baseline of 45.5 kg for the first 5 feet (152 cm) of height, also adding 0.9 kg for each centimeter above that.

Benefits of Knowing Your IBW

Set realistic health goals – Track progress against a healthy weight target.
Support diet and exercise planning – Use IBW as a guide for calorie and nutrition needs.
Prevent health risks – Being too far above or below IBW may increase the chance of conditions like diabetes, heart disease, or nutrient deficiencies.
Stay motivated – Having a clear target weight helps keep your fitness journey on track.

Why Use an Online IBW Tool?

Doing the math yourself can be time-consuming and confusing. An online tool:

Provides instant, accurate results without manual calculations.
Works anywhere, on any device.
Offers results across different IBW formulas in seconds.
Helps both health professionals and individuals save time.

Limitations of IBW

IBW is only an estimate. It does not take into account:

Age and lifestyle factors
Muscle mass or athletic build
Bone density
Medical conditions

That’s why it should be used as a guide, not a strict diagnosis. Always consult a doctor or nutrition expert for personal advice.

FAQ

IBW is an estimated healthy weight range based on height and gender, used as a guideline for health and fitness.

It uses standard medical formulas, but results should be viewed as estimates. For clinical accuracy, consult a doctor.

No. IBW formulas don’t factor in muscle mass, age, or body composition. They only use height and gender.

Yes, IBW is a good starting point, but combine it with BMI, waist-to-hip ratio, and professional advice for safe goal-setting.

No. IBW gives a target weight based on height, while BMI evaluates body fat using height and weight together.

Disclaimer: This calculator provides estimates for general guidance only. It is not a substitute for professional medical advice, diagnosis, or treatment.

Ideal Body Weight Calculator

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