Is this the same as a 'healthy weight'?

Not exactly — the Devine formula was originally created to help calculate medication dosages, not as a general wellness target. It's widely cited as a reference point, but doesn't account for body composition, muscle mass, or frame size the way a fuller health assessment would.

What's the actual formula?

For men: 50 kg + 2.3 kg for each inch over 5 feet. For women: 45.5 kg + 2.3 kg for each inch over 5 feet. Height exactly at 5 feet gives the base value with no addition.

Why is this formula still used in medicine today?

It's used clinically for calculating medication dosages for drugs where dosing is based on estimated lean body weight rather than actual body weight — this is a specific clinical use case, distinct from general fitness or wellness goals.

Should I use this number as a personal weight goal?

This figure is a formula-based reference point originally built for a clinical dosing purpose, not a personalized health target. For guidance on a healthy weight range for your specific situation, a healthcare provider can account for factors this formula doesn't, like body composition and overall health.

Does this formula work the same for all body types?

No — because it's based purely on height, it doesn't distinguish between someone with a larger muscular frame and someone with a smaller frame at the same height, which is one of its well-known limitations as a general reference.

Health & Fitness Cluster

Ideal Body Weight Calculator

Estimate ideal weight using the Devine formula.

TL;DR: Ideal Body Weight Calculator is a free, browser-based tool that lets you estimate ideal weight using the Devine formula.

Sex

Height (feet)

Height (inches)

What Is the Ideal Body Weight Calculator?

The Ideal Body Weight Calculator computes health and physiological metrics based on established clinical formulas, helping you monitor fitness benchmarks, body composition, and daily nutritional requirements.

Step-by-Step: Using This Calculator

Select your measurement system (Metric or Imperial units).
Enter your height, weight, age, and relevant biometric measurements.
View your calculated biometric score and clinical classification category.
Use the target recommendations to guide sustainable fitness and wellness goals.

Mathematical Formula & Methodology

Here is the standard mathematical equation used to calculate this result accurately:

\text{Devine Formula: Men: } 50\text{kg} + 2.3(H - 60\text{ in}), \quad \text{Women: } 45.5\text{kg} + 2.3(H - 60\text{ in})

Formula Variables Explained:
Calculates clinically healthy ideal weight ranges using Devine, Robinson, Miller, and Hamwi medical equations.

Step-by-Step Worked Example

For a 5 ft 10 in (70 inches) male: Devine IBW = $50 + 2.3(10) = 73\text{ kg}$ (161 lbs), with healthy BMI range 130–174 lbs.

Maximize Your Results

Track Long-Term Trends: Measure biometrics under consistent conditions (e.g., first thing in the morning) rather than stressing over daily fluctuations.
Holistic Context: Treat formula calculations as broad wellness guidelines rather than strict medical diagnoses.
Consult Professionals: Consult a physician or registered dietitian before making substantial dietary or caloric adjustments.

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100% Client-Side Privacy Guarantee

All processing runs locally inside your browser using JavaScript and HTML5 APIs. Your data, files, and inputs are never uploaded to any remote server. Complete privacy by design.

Frequently Asked Questions

: Not exactly — the Devine formula was originally created to help calculate medication dosages, not as a general wellness target. It's widely cited as a reference point, but doesn't account for body composition, muscle mass, or frame size the way a fuller health assessment would.
: For men: 50 kg + 2.3 kg for each inch over 5 feet. For women: 45.5 kg + 2.3 kg for each inch over 5 feet. Height exactly at 5 feet gives the base value with no addition.
: It's used clinically for calculating medication dosages for drugs where dosing is based on estimated lean body weight rather than actual body weight — this is a specific clinical use case, distinct from general fitness or wellness goals.
: This figure is a formula-based reference point originally built for a clinical dosing purpose, not a personalized health target. For guidance on a healthy weight range for your specific situation, a healthcare provider can account for factors this formula doesn't, like body composition and overall health.
: No — because it's based purely on height, it doesn't distinguish between someone with a larger muscular frame and someone with a smaller frame at the same height, which is one of its well-known limitations as a general reference.

Cite This Tool

Referencing this tool in a paper, article, or bibliography? Copy a ready-made citation below.

NexLove.org. (2026). Ideal Body Weight Calculator [Software]. https://nexlove.org/tools/ideal-body-weight-calculator.html

“Ideal Body Weight Calculator.” NexLove.org, 2026, nexlove.org/tools/ideal-body-weight-calculator.html.

NexLove.org (2026) Ideal Body Weight Calculator. Available at: https://nexlove.org/tools/ideal-body-weight-calculator.html (Accessed: 2026).

@misc{nexlove_ideal_body_weight_calculator,
  title = {Ideal Body Weight Calculator},
  author = {{NexLove.org}},
  year = {2026},
  url = {https://nexlove.org/tools/ideal-body-weight-calculator.html}
}

Embed This Tool

Add the live Ideal Body Weight Calculator tool to your own website with this snippet — it loads the real, working tool in an iframe, not a static screenshot.

<iframe src="https://nexlove.org/embed/ideal-body-weight-calculator.html" width="100%" height="600" style="border:1px solid #e2e8f0;border-radius:12px" title="Ideal Body Weight Calculator — NexLove.org" loading="lazy"></iframe>

Understanding the Ideal Body Weight Calculator

This calculator provides instant, client-side computations designed for precision and ease of use.

Key Benefits

Instant Execution: No page reloads required. The math is calculated dynamically as you type.
Private & Secure: No financial, personal, or numerical data is transmitted. All calculations run in your browser's memory.

Disclaimer: While we strive for absolute accuracy, the Ideal Body Weight Calculator should be used for informational purposes. Always verify critical calculations with a licensed professional where applicable.

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