Formula
Robinson formula by height and sex, with a ±10% range around the point estimate.
Ideal Weight Calculator
Healthy weight range from height and sex using the Robinson formula with a plus/minus 10% band.
Your inputs
About this method
Units
Enter height in cm; results show kilograms (and pounds). Best for adults of average frame.
Limitations
Does not replace BMI, body-composition testing, or clinical judgement for athletes or medical conditions.
Frequently asked questions
What formula does this use?
Robinson formula: men 52 kg + 1.9 kg per inch over 5 ft; women 49 kg + 1.7 kg per inch over 5 ft. We also show a ±10% band around that point estimate.
Is ideal weight the same as healthy weight?
Not always. Frame size, muscle, age, and medical conditions matter. BMI and clinical assessment give more context.
Is this medical advice?
No. Educational estimate only. Ask a clinician for personalised weight targets.