Use the free calculator below to find out your Body Mass Index as per WHO formula. Enter your height & weight (either in metric or imperial) and instantly get your body mass index (BMI). Our free BMI calculator is an essential tool, absolutely free without email signup.

## Check Your BMI (body mass index)

### Check Your BMI

require | require |

Your BMI is......

BMI | Classification |
---|---|

less than 18.5: | Underweight |

18.5 - 24.9: | Normal weight |

25 - 29.9: | Overweight |

30 - 34.9: | Class I Obese |

35 - 39.9: | Class II Obese |

40 upwards: | Class III Obese |

## More About BMI

** Body mass index** is a simple a formula developed by World Health Organization (WHO) to check one’s height-to-weight ratio. According to this formula, a BMI of 18.5 to 25 is considered ideal for a normal person.

BMI is simply a health screener. It does not measure your body fat percentage, muscle mass or other vital health indicators. It gives you a rough idea, so only a Doctor can accurately assess your condition.

Many argue that the BMI calculation method is wrong because it ignores body type, race & activity levels. For ex: a 200 pound weighing athlete & 180 pound ordinary man may have the same BMI. However, according to *USA Center for disease control & preventio*n (cdc.gov) BMI is still a very useful health indicator.

## How BMI is Calculated?

With the metric system, the formula for BMI is weight in kilograms divided by height in meters squared.

**Formula: weight (kg) / [height (m)] ^{2}**

Height is commonly measured in centimeters, divide height in centimeters by 100 to obtain height in meters.

Example: Weight = 68 kg, Height = 165 cm (1.65 m)

Calculation: 68 ÷ (1.65)^{2} = 24.98

**Formula: weight (lb) / [height (in)] ^{2} x 703**

Calculate BMI by dividing weight in pounds (lbs) by height in inches (in) squared and multiplying by a conversion factor of 703.

Example: Weight = 150 lbs, Height = 5’5″ (65″)

Calculation: [150 ÷ (65)^{2}] x 703 = 24.96

**IDEAL WEIGHT BASED ON HEIGHT**

Use the quick reference chart below to find out your ideal weight.

Height | Male | Female |

4′ 10″ | 85 – 103 lbs. | 81 – 99 lbs. |

4′ 11″ | 90 – 110 lbs. | 86 – 105 lbs. |

5′ 0″ | 95 – 117 lbs. | 90 – 110 lbs. |

5′ 1″ | 101 – 123 lbs. | 95 – 116 lbs. |

5′ 2″ | 106 – 130 lbs. | 99 – 121 lbs. |

5′ 3″ | 112 – 136 lbs. | 104 – 127 lbs. |

5′ 4″ | 117 – 143 lbs. | 108 – 132 lbs. |

5′ 5″ | 122 – 150 lbs. | 113 – 138 lbs. |

5′ 6″ | 128 – 156 lbs. | 117 – 143 lbs. |

5′ 7″ | 133 – 163 lbs. | 122 – 149 lbs. |

5′ 8″ | 139 – 169 lbs. | 126 – 154 lbs. |

5′ 9″ | 144 – 176 lbs. | 131 – 160 lbs. |

5′ 10″ | 149 – 183 lbs. | 135 – 165 lbs. |

5′ 11″ | 155 – 189 lbs. | 140 – 171 lbs. |

6′ 0″ | 160 – 196 lbs. | 144 – 176 lbs. |

6′ 1″ | 166 – 202 lbs. | 149 – 182 lbs. |

6′ 2″ | 171 – 209 lbs. | 153 – 187 lbs. |

6′ 3″ | 176 – 216 lbs. | 158 – 193 lbs. |

6′ 4″ | 182 – 222 lbs. | 162 – 198 lbs. |

6′ 5″ | 187 – 229 lbs. | 167 – 204 lbs. |

6′ 6″ | 193 – 235 lbs. | 171 – 209 lbs. |

6′ 7″ | 198 – 242 lbs. | 176 – 215 lbs. |

6′ 8″ | 203 – 249 lbs. | 180 – 220 lbs. |

6′ 9″ | 209 – 255 lbs. | 185 – 226 lbs. |

6′ 10″ | 214 – 262 lbs. | 189 – 231 lbs. |

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