BMI 18 for males and females means
Underweight/Mild thinness
BMI 18 is 0.4 points below the beginning of the healthy BMI range (18.4 - 24.9).
BMI of 18 is it Good or Bad? A BMI of 18 is in the underweight range. This means you might need to up your nutrition to meet your body's needs. Keep an eye on your weight over time.
This is the World Health Organization's (WHO) recommended body weight based on BMI values for adults. It is used for both men and women, age 20 or older.
| BMI | Category |
|---|---|
| < 16 | Underweight (Severe thinness) |
| 16 - 16.9 | Underweight (Moderate thinness) |
| 17 - 18.4 | Underweight (Mild thinness) |
| 18.5 - 24.9 | Normal range |
| 25 - 29.9 | Overweight (Pre-obese) |
| 30 - 34.9 | Obese (Class I) |
| 35 - 39.9 | Obese (Class II) |
| ≥ 40 | Obese (Class III) |
| BMI | Height and weight (cm/kg) | Height and weight (ft in/lbs) |
|---|---|---|
| BMI 18 | 156 cm 44 kg | 4'6" 75 lbs |
| BMI 18 | 157 cm 44 kg | 4'7" 77 lbs |
| BMI 18 | 158 cm 45 kg | 4'8" 80 lbs |
| BMI 18 | 159 cm 46 kg | 4'9" 83 lbs |
| BMI 18 | 160 cm 46 kg | 4'10" 86 lbs |
| BMI 18 | 161 cm 47 kg | 4'11" 89 lbs |
| BMI 18 | 162 cm 47 kg | 5'0" 92 lbs |
| BMI 18 | 163 cm 48 kg | 5'1" 95 lbs |
| BMI 18 | 164 cm 48 kg | 5'2" 98 lbs |
| BMI 18 | 165 cm 49 kg | 5'3" 102 lbs |
| BMI 18 | 166 cm 50 kg | 5'4" 105 lbs |
| BMI 18 | 167 cm 50 kg | 5'5" 108 lbs |
| BMI 18 | 168 cm 51 kg | 5'6" 112 lbs |
| BMI 18 | 169 cm 51 kg | 5'7" 115 lbs |
| BMI 18 | 170 cm 52 kg | 5'8" 118 lbs |
| BMI 18 | 171 cm 53 kg | 5'9" 122 lbs |
| BMI 18 | 172 cm 53 kg | 5'10" 125 lbs |
| BMI 18 | 173 cm 54 kg | 5'11" 129 lbs |
| BMI 18 | 174 cm 54 kg | 6'0" 133 lbs |
| BMI 18 | 175 cm 55 kg | 6'1" 136 lbs |
| BMI 18 | 176 cm 56 kg | 6'2" 140 lbs |
| BMI 18 | 177 cm 56 kg | 6'3" 144 lbs |
| BMI 18 | 178 cm 57 kg | 6'4" 148 lbs |
| BMI 18 | 179 cm 58 kg | 6'5" 152 lbs |
| BMI 18 | 180 cm 58 kg | 6'6" 156 lbs |
| BMI 18 | 181 cm 59 kg | 6'7" 160 lbs |