BMI Calculator

BMI calculator in kg and cm — check your Body Mass Index and healthy weight range instantly. Use the free BMI Calculator below — enter your values and get instant results, right in your browser. BMI = weight (kg) ÷ height (m)². Height in cm is divided by 100 to get meters. WHO categories: <18.5 underweight, 18.5–24.9 healthy, 25–29.9 overweight, ≥30 obese. Healthy range = 18.5–24.9 × height(m)².

How to use the BMI Calculator

Body Mass Index is the quickest health checkpoint used by doctors worldwide — one number that relates your weight to your height. This BMI calculator in kg and cm is built for how Pakistan and India actually measure: kilograms and centimeters, no feet-inches conversion needed. Enter your weight and height to get your BMI plus the healthy weight range for your height, so you can set a realistic target.

  1. Enter your weight in kilograms in the Weight field.
  2. Enter your height in centimeters in the Height field.
  3. Click the Calculate button.
  4. Read your BMI and check it against the category scale in the note.
  5. Use the healthy weight range to set a sensible target weight.

Formula

BMI = weight (kg) ÷ height (m)². Height in cm is divided by 100 to get meters. WHO categories: <18.5 underweight, 18.5–24.9 healthy, 25–29.9 overweight, ≥30 obese. Healthy range = 18.5–24.9 × height(m)².

Worked example

Weight 70 kg, height 170 cm. Click Calculate. BMI = 70 ÷ (1.7 × 1.7) = 24.2 — in the healthy range. Healthy weight for this height: 53.5 to 72.0 kg. A quick, honest checkpoint before starting any diet plan.

Frequently asked questions

The WHO healthy range is 18.5 to 24.9. Below is underweight, 25–29.9 is overweight, and 30 or above is classified as obese.

Not always — muscle weighs more than fat, so muscular people can show a high BMI while being very fit. Treat it as a screening measure.

Children need age-and-gender BMI percentiles, not the adult formula. This calculator is designed for adults.

TDEE & Daily Calorie Needs How many calories should I eat per day to lose weight? Get your personal daily target in seconds. Daily Water Intake Calculator How much water should I drink daily calculator by weight — get your personal hydration target. Steps to KM Converter How many km is 10000 steps? Convert your step count to kilometers using your height.