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Find the healthy weight range for your height using WHO BMI guidelines (18.5–24.9). Shows results in both pounds and kilograms.
Healthy Weight Range (BMI 18.5 – 24.9):
Minimum weight = 18.5 × height(m)²
Maximum weight = 24.9 × height(m)²
Based on the WHO BMI classification. Normal/healthy weight = BMI 18.5 to 24.9. To convert: 1 kg = 2.20462 lbs; height in inches × 0.0254 = height in meters.
A healthy weight range corresponds to a BMI of 18.5–24.9 as defined by the World Health Organization. This range is associated with the lowest risk of weight-related health conditions including diabetes, heart disease, and certain cancers.
BMI is a useful screening tool but has limitations. It does not distinguish between muscle and fat mass — a muscular athlete may have a high BMI without excess fat. It may also underestimate health risks in older adults who have lost muscle mass. Use BMI alongside other health indicators.
Excess body weight is associated with increased risk of type 2 diabetes, cardiovascular disease, high blood pressure, sleep apnea, osteoarthritis, and certain cancers. Even a modest 5-10% weight reduction in overweight individuals can significantly improve health markers.
Being underweight (BMI below 18.5) is linked to nutritional deficiencies, weakened immune function, osteoporosis, fertility issues, anemia, and increased surgical risk. Underweight can result from inadequate nutrition, eating disorders, or underlying medical conditions.
Standard BMI ranges apply to adults 18-65. For adults over 65, some research suggests a BMI of 25-27 may be optimal. For children, age- and sex-specific BMI percentiles are used. Some health organizations recommend lower cutoffs for Asian populations due to higher metabolic risk at lower BMIs.