BMI Calculator - Telugu Numerals

What is the formula for BMI?

BMI is calculated as weight in kilograms divided by height in meters squared: BMI = kg / m². For imperial units, the formula is BMI = (lbs × 703) / inches². For example, someone who is 70 inches tall and weighs 160 lbs has a BMI of (160 × 703) / (70 × 70) = 22.9. A BMI between 18.5 and 24.9 is considered normal weight. This calculator handles both metric and imperial units automatically.

Why does BMI overestimate body fat in athletes but underestimate it in older adults?

BMI cannot distinguish between muscle and fat. Muscle is denser than fat, so a muscular athlete can weigh enough to register as "overweight" despite having low body fat. Conversely, older adults lose muscle mass with age — their weight may look normal on the BMI scale while they have a higher-than-healthy body fat percentage. This is why BMI is a screening tool, not a diagnostic one. For a true body composition reading, methods like DEXA scans, bioelectrical impedance, or skinfold calipers are needed.

Why do some countries use different BMI cutoffs for Asian populations?

Research shows that health risks begin at a lower BMI for people of South Asian, Chinese, and Japanese descent. The WHO recommends a modified scale for Asian populations: overweight starts at 23 (not 25), and obese starts at 27.5 (not 30). This is because Asian populations tend to accumulate visceral fat — the dangerous fat around organs — at lower body weights than European populations. India, Japan, and Singapore have all adopted these lower thresholds in their national health guidelines.

What is the difference between BMI and body fat percentage — and which matters more?

BMI is a height-to-weight ratio that estimates whether your weight is appropriate. Body fat percentage directly measures what portion of your body is fat versus lean tissue. Body fat percentage is the more accurate health indicator, but it requires equipment (calipers, scales, or scans) to measure. BMI is useful because it needs only a scale and tape measure. If your BMI is in the normal range but you feel you carry excess fat, ask your doctor about a body composition test rather than relying on BMI alone.

Does the BMI calculator support imperial units?

Yes. You can switch between metric (kg/cm) and imperial (lbs/inches/feet) units at any time. The calculator applies the correct formula for each system — 703 × weight(lbs) / height(inches)² for imperial, and weight(kg) / height(m)² for metric. The BMI category result is identical regardless of which unit system you use.

Are Telugu numerals interchangeable with Kannada numerals?

Telugu and Kannada scripts share a common ancestor, and their numeral glyphs are visually similar but have subtle differences in stroke endings and curves. For example, Telugu 7 (౬) has a more angular form than Kannada 7 (೬). If you are producing Telugu-language documents, use the Telugu mode specifically rather than the Kannada mode to ensure readers see the correct glyph forms.

Input: Weight: 70 kg, Height: 175 cm

Result: BMI = 70 / (1.75)² = 22.86 — Normal weight (18.5 to 24.9)

Input: Weight: 180 lbs, Height: 5 ft 10 in

Result: BMI = 703 × 180 / (70)² = 25.82 — Overweight (25 to 29.9)