What is the Ideal Weight Calculator?
The ideal weight calculator is a free online tool that helps you work out ideal weight quickly and accurately. It uses the standard formula Robinson formula plus a BMI 18.5-24.9 healthy range and shows the result instantly as you type, along with a full breakdown so you can see exactly how the answer was reached.
How to use this calculator
- Choose gender.
- Enter your height.
- See ideal weight and a healthy range.
Formula used
Robinson formula plus a BMI 18.5-24.9 healthy rangeExplanation of each input
- Gender โ the gender used in the calculation.
- Height (cm) โ the height used in the calculation.
Understanding your result
- Ideal weight (Robinson) โ the calculated ideal weight (robinson) in kg.
- Healthy range low โ the calculated healthy range low in kg.
- Healthy range high โ the calculated healthy range high in kg.
Step-by-step calculation
For the example values Male, 170cm:
- Apply the formula:
Robinson formula plus a BMI 18.5-24.9 healthy range - Substitute the values: Robinson + BMI range
- Result: Ideal about 65 kg; range 53-72 kg
Worked example
| Inputs | Male, 170cm |
|---|---|
| Working | Robinson + BMI range |
| Result | Ideal about 65 kg; range 53-72 kg |
Benefits and practical uses
This calculator saves you time and reduces errors when you need ideal weight. It is useful for students, professionals and anyone who wants a fast, reliable answer without manual calculation. Results update instantly, work in your browser and can be copied or shared in one click.
Assumptions and limitations
- Robinson (1983) formula.
- Adults only.
Frequently asked questions
Is there one ideal weight?
No. Formulas give estimates; a healthy range based on BMI is more realistic.
Disclaimer: This calculator provides general estimates for educational purposes only and is not medical advice. Consult a qualified healthcare professional for personal guidance.