Kondria Tools
BMI Calculator (Metric & Imperial)
Calculate your Body Mass Index (BMI) using kg/cm or lb/ft-in. Get your BMI category, healthy weight range, and practical next steps.
Disclaimer: These tools provide general fitness estimates and are not medical advice. Consult a professional for medical or nutrition guidance.
Calculator
BMI (Body Mass Index)
Result
20.9
NormalYour BMI is 20.9, which falls in Normal.
BMI ranges (adults)
- Underweight: < 18.5
- Normal: 18.5 – 24.9
- Overweight: 25.0 – 29.9
- Obesity: ≥ 30.0
Healthy weight range (BMI 18.5–24.9)
For your height, a “normal” BMI typically corresponds to about 65.4–88 kg.
This is a guideline, not a diagnosis. Body composition and waist size matter a lot.
What this means
Great. Focus on waist size, strength, sleep, and consistency.
Tip: If you lift weights or are very muscular, BMI may label you “overweight” despite being healthy—use waist-to-height ratio for more context.
What BMI is (and what it isn’t)
BMI estimates weight status using height and weight. It’s calculated as weight (kg) ÷ height² (m²). BMI is useful as a quick screening metric for most adults, but it does not directly measure body fat, muscle mass, or fat distribution.
When BMI is helpful
- Quick screening and baseline tracking
- Monitoring long-term changes (with other metrics)
- Starting point for planning calories and training
When BMI can mislead
- High muscle mass (strength trainees/athletes)
- Older adults (lean mass changes)
- Doesn’t capture fat distribution (waist size matters)
BMI chart (adults)
| Category | BMI range | Practical note |
|---|---|---|
| Underweight | < 18.5 | Consider nutrition + strength training; rule out medical issues. |
| Normal | 18.5 – 24.9 | Focus on performance, waist size, and consistency. |
| Overweight | 25.0 – 29.9 | Check waist-to-height; consider a small calorie deficit. |
| Obesity | ≥ 30.0 | Prioritize sustainable fat loss + medical guidance if needed. |
What to do next
BMI is one signal. For better context, combine it with a calorie target and a training plan.
Medical disclaimer: This tool provides estimates and is not medical advice. If you have medical conditions, consult a qualified professional.
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