Healthy Weight Calculator
Find your healthy weight range for your height from the normal BMI band.
About Healthy Weight Calculator
The WHO healthy weight range is defined by the 'normal' BMI band of 18.5–24.9 kg/m². By fixing BMI at each endpoint and solving for weight, we get the minimum and maximum weight that keeps you in the normal category for your height. The mid-range target of BMI 21.7 sits at the centre of the band.
Formula
Healthy weight from BMI
Weight (kg) = BMI × height² (m²)
- W
- Weight in kilograms
- h
- Height in metres
- BMI
- 18.5 (lower bound) or 24.9 (upper bound)
Worked example
With the default values below, Healthy Weight Calculator returns Minimum Healthy Weight of 56.7. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Unitsone of Metric (cm, kg), Imperial (in, lb)
- Metric (cm, kg)
- Height (cm)accepts 100–250 cm
- 175 cm
- Height (in)accepts 39–98 in
- 69 in
- Current Weight (kg, optional)accepts 0–300 kg
- 0 kg
- Current Weight (lb, optional)accepts 0–660 lb
- 0 lb
Results
- Minimum Healthy Weight
- 56.7 kg
- Maximum Healthy Weight
- 76.3 kg
- Mid-Range Weight (BMI 21.7)
- 66.5 kg
- Minimum (lb)
- 124.9 lb
- Maximum (lb)
- 168.1 lb
Step by step
- 1Height in metres= 1.75 m
- 2Minimum healthy weight (BMI 18.5)= 56.7 kg
- 3Maximum healthy weight (BMI 24.9)= 76.3 kg
Assumptions and limits
- The result is derived only from the 5 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 1 decimal place, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
- This tool provides estimates based on the WHO BMI standard and is not a substitute for clinical assessment. BMI does not measure body fat directly and may misclassify muscular individuals or those with low muscle mass.
- This is an estimate for general information and not professional medical advice. See the full disclaimer for the limits that apply to this kind of calculator.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
This tool provides estimates based on the WHO BMI standard and is not a substitute for clinical assessment. BMI does not measure body fat directly and may misclassify muscular individuals or those with low muscle mass.
Frequently Asked Questions
Is the healthy BMI range the same for everyone?
The 18.5–24.9 range is calibrated to white European populations. Many Asian health bodies use a lower threshold of 23 for overweight and 27.5 for obesity, because metabolic risk appears higher at lower BMIs in Asian populations. Athletes may fall outside the healthy range due to muscle mass.
What if I'm naturally on the lower or upper end?
Both ends of the healthy range are healthy. Someone with a large frame naturally sits toward the upper end of normal; a smaller-framed person toward the lower. If your weight is within the range and your waist circumference and metabolic markers are normal, you are not at elevated risk.
How quickly should I aim to reach the healthy range?
Sustainable fat loss is 0.5–1 kg/week (equivalent to a 500–1000 kcal/day deficit). Setting a timeline based on this rate makes goals achievable. Faster losses typically include significant lean mass loss.