What is the Ideal Weight Calculator?
Estimate ideal body weight with the Devine, Robinson, Miller and Hamwi formulas. Our health and fitness calculators use validated, published equations — such as Mifflin-St Jeor for metabolic rate and the U.S. Navy method for body fat — to give you a solid starting point for training and nutrition.
How to use the Ideal Weight Calculator
- Enter your sex, your height.
- Results update automatically as you type; you can also press Calculate.
- Read the output: devine, robinson, miller, hamwi.
- Use the 📊 chart to see the result visually, then copy or share it.
Formula and method
Worked example
With sex = Male, height = 175 cm, the Ideal Weight Calculator returns devine: 70.5 kg; robinson: 68.9 kg; miller: 68.7 kg.
Tips for better results
- Equations estimate population averages; your individual numbers may differ.
- Track trends over weeks rather than reacting to a single reading.
- Pair calculators with professional guidance for medical conditions, pregnancy or major diet changes.
⚠️ This tool provides general information and is not medical advice. It is not a substitute for diagnosis or treatment by a qualified healthcare professional.
Frequently asked questions
What does the Ideal Weight Calculator do?
Estimate ideal body weight with the Devine, Robinson, Miller and Hamwi formulas.
How is it calculated?
The Ideal Weight Calculator uses this method: Devine: 50 kg (men) / 45.5 kg (women) + 2.3 kg per inch over 5 ft.
Can you show an example?
With sex = Male, height = 175 cm, the Ideal Weight Calculator returns devine: 70.5 kg; robinson: 68.9 kg; miller: 68.7 kg.
Is the Ideal Weight Calculator accurate?
It uses standard published formulas and is tested against known values, but results are estimates for guidance. This tool provides general information and is not medical advice. It is not a substitute for diagnosis or treatment by a qualified healthcare professional.
Is this tool free and private?
Yes — the Ideal Weight Calculator is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
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