BMI Calculator
Enter your height and weight to calculate your BMI and see where you fall on the standard BMI scale. Supports both metric (kg/cm) and imperial (lb/ft) units. Shows your healthy weight range for your height.
BMI Calculator — Coming Soon
We are building a 100% client-side interface for this tool. In the meantime, use the formula below.
📐 How to calculate BMI manually
Metric: Weight (kg) ÷ [Height (m)]²
Imperial: 703 × Weight (lbs) ÷ [Height (inches)]²
Example: 70 kg ÷ (1.75 m)² = 22.9 (Normal weight)
The SolveBar BMI Calculator computes your Body Mass Index from your height and weight, shows where you fall on the standard BMI scale, and gives your healthy weight range for your height. Supports both metric and imperial units.
What is BMI?
Body Mass Index is a simple screening tool that uses your height and weight to estimate whether your weight falls in a healthy range. It is calculated as weight in kg divided by height in metres squared.
BMI categories
The standard categories are: Underweight (below 18.5), Normal weight (18.5–24.9), Overweight (25–29.9), and Obese (30 and above). These ranges apply to most adults but may vary for athletes, elderly individuals and different ethnic groups.
Limitations of BMI
BMI is a screening tool, not a diagnostic measure. It does not account for muscle mass, bone density, fat distribution or age. Athletes often have high BMI despite being very healthy. Always consult a healthcare professional for a full assessment.
Frequently Asked Questions
Is BMI accurate for everyone?
BMI is a useful general screening tool but has limitations. It can overestimate body fat in athletes and underestimate it in older adults. Use it as a starting point, not a diagnosis.
What is a healthy BMI range?
For most adults, a BMI between 18.5 and 24.9 is considered healthy. Below 18.5 is underweight and above 25 is overweight.
How do I calculate BMI manually?
Divide your weight in kilograms by your height in metres squared. For imperial: multiply weight in pounds by 703, then divide by height in inches squared.