Health & Fitness

Free Ideal Body Weight Calculator — Devine & Robinson Formulas

Determining a healthy target weight range based on height and gender is essential for medical screening and fitness planning. Our free ideal body weight calculator computes your medical IBW using the clinical devine formula ideal weight equation to give you a personalized healthy target weight range.

Smart Ideal Body Weight (IBW) Calculator

Calculate target medical ideal weight with frame size & healthy BMI range

Gender

Height

Body Frame Size

Devine Ideal Body Weight

73.0 kg(160.9 lbs)

Healthy Frame Range:65.7 - 80.3 kg

Normal BMI (18.5 - 24.9):58.5 - 78.7 kg

Robinson Formula:71.0 kg

Miller / Hamwi:70.3 / 75.0 kg

Mathematical Formulas & Calculation Methods

Devine Formula (Clinical Standard)

The Devine formula is the most widely used medical formula for calculating ideal body weight based on height over 5 feet.

Men: IBW (kg) = 50 + 2.3 × (Height in inches - 60) Women: IBW (kg) = 45.5 + 2.3 × (Height in inches - 60)

Worked Step-by-Step Examples

Example 1: Male, Height 5 ft 10 in (70 inches)

"Calculate ideal body weight using Devine formula for a 5'10" male."

Steps:

Inches over 5 feet: 70 - 60 = 10 inches
Calculation: 50 + (2.3 × 10) = 50 + 23 = 73 kg (160.9 lbs)

Result: Ideal Weight: 73 kg / 160.9 lbs (Healthy Range: 65.7–80.3 kg).

Example 2: Real-World Practical Application of Free Ideal Body Weight Calculator

"A student or professional needs to calculate values in a real-world scenario using <strong>healthy target weight range</strong>. What step-by-step method yields the correct answer?"

Steps:

Gather baseline numbers for ibw calculator online.
Substitute values into the primary equation.
Verify calculations using our ideal body weight calculator tool.

Result: Provides exact, verified output ready for academic or professional use.

What is Ideal Body Weight (IBW) Calculator?

An ideal body weight calculator is a clinical health tool that estimates an optimal weight for an individual based on biological sex and height.

Our ibw calculator online compares the Devine, Robinson, Miller, and Hamwi equations side by side.

How to Use Ideal Body Weight (IBW) Calculator

1Enter your primary numbers into the designated input fields.
2Select your preferred measurement unit or scale parameters if applicable.
3Watch the ideal body weight calculator update calculations automatically in real time.
4Click the Copy button to export your final answer directly to your clipboard.

Key Features

Displays Devine, Robinson, Miller, and Hamwi formula results.
Calculates healthy body weight range (±10% IBW).
100% browser private.
Real-time auto-calculation engine featuring calculate ideal weight for height logic.
Clean, intuitive user interface designed for mobile and desktop screens.

Benefits of Using Ideal Body Weight (IBW) Calculator

Provides realistic fitness target weights without extreme crash dieting.

Saves time on homework, grading, budgeting, and technical research.

Eliminates common manual calculation mistakes and rounding errors.

Provides immediate visual feedback using standard devine formula ideal weight formulas.

Practical Use Cases

Medical Professionals & Fitness Enthusiasts

Calculate target healthy weights using our medical ideal weight finder.

Students & Educators

Verify class assignments and master calculate ideal weight for height concepts with step-by-step clarity.

Professionals & Analysts

Perform accurate calculations and report generation using our ideal body weight calculator.

Everyday Users

Solve daily practical quantitative questions easily with zero math stress.

Frequently Asked Questions

What is the Devine formula for ideal body weight?

The Devine formula sets a base of 50 kg for men (45.5 kg for women) at 5 feet tall, adding 2.3 kg for every additional inch of height.

What is the primary formula used in this ideal body weight calculator?

The calculation relies on the standard devine formula ideal weight equation. Our tool automates the math so you get instant results without manual errors.

How accurate is this online ideal body weight calculator?

Our healthy target weight range uses double-precision floating point arithmetic to deliver 100% exact numerical outputs for academic and daily practical use.

Can I use this ideal body weight calculator on mobile devices?

Yes! The ideal body weight calculator is fully responsive, optimized for smartphones, tablets, and desktop computers.

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