Your calculated results
Review BMI alongside waist measurements and personal health context.
Monthly mathematical projection
This table divides the selected weight change evenly across the available calendar time.
| Date | Projected weight | Projected BMI | Remaining change |
|---|
Calculation details
Shareable summary
Formula used
BMI compares weight with height using a standard adult formula. It does not directly measure body fat or muscle mass. Use waist data and professional advice for broader context.
How to use this calculator
- Select a measurement preset or choose mixed units.
- Enter age, height, weight, and optional waist size.
- Add build, activity, and goal details when useful.
- Select Calculate BMI to display every result.
- Copy, print, or export the calculated summary.
Measure height without shoes and keep your posture upright. Measure weight on a stable scale under similar conditions. Measure waist midway around your abdomen without compressing skin.
Adult BMI classifications
| BMI range | Classification |
|---|---|
| Below 18.5 | Underweight |
| 18.5 to below 25 | Healthy weight |
| 25 to below 30 | Overweight |
| 30 to below 35 | Class 1 obesity |
| 35 to below 40 | Class 2 obesity |
| 40 or above | Class 3 obesity |
Example BMI results
| Height | Weight | BMI | Result |
|---|---|---|---|
| 175 cm | 60 kg | 19.6 | Healthy weight |
| 175 cm | 75 kg | 24.5 | Healthy weight |
| 175 cm | 85 kg | 27.8 | Overweight |
| 175 cm | 100 kg | 32.7 | Class 1 obesity |
Important limitations
BMI is a screening measurement rather than a diagnosis. Muscular men may receive higher classifications despite lower body fat. Pregnancy, illness, ageing, and medical history require individual assessment.
Frequently asked questions
What is BMI for men?
BMI compares body weight with height. Adult men use the same standard BMI formula and category ranges as adult women.
Is BMI calculated differently for men?
No. The adult formula is identical, but muscle mass and waist measurements can change how the result should be interpreted.
What is a healthy BMI for an adult man?
A BMI from 18.5 to below 25 is generally classified as healthy for adults.
How is BMI calculated in kilograms?
Divide weight in kilograms by height in metres squared.
How is BMI calculated in pounds?
Multiply pounds by 703, then divide by height in inches squared.
Is BMI accurate for muscular men?
BMI may classify muscular men too highly because it cannot separate muscle, bone, and body fat.
Why should men measure waist circumference?
Waist size adds context about abdominal fat and can support a broader health assessment.
What weight gives me a healthy BMI?
The calculator applies BMI values from 18.5 through 24.9 to your entered height.
Can BMI measure body-fat percentage?
No. This page provides only a rough formula-based estimate, not a direct body-composition measurement.
Does age affect adult BMI categories?
Standard adult categories do not change by age, although health interpretation should consider age and medical history.
When should I speak with a health professional?
Seek professional guidance when results concern you, goals require rapid weight change, or health conditions affect weight management.