BMI Calculation Formula in lbs and kg

There is a simple formula to help you work out your Body Mass Index (BMI). Use these ready made BMI tables showing numerical values for a height range between 66 and 72 inches.

These three steps explain how to calculate the values for heights below 1.7 and above 1.8 metres.

  1. Your weight (in pounds) multiplied by 703 [body weight x 703 = x]
  2. Your height (in inches) times two (2) [height x 2 = x]
  3. Divide the first calculation by the answer from the second calculation to get the BMI figure.

Note: A different section provides further advice about Body Mass Index. It explains the meaning of BMI and the five categories used to assess health risks.

BMI Calculator for Height 68 Inches

WeightWeight (x 703 / ht x ht)BMIStatus
110 lbs (50 kg)77,330 / 4,62417Underweight
130 lbs (59 kg)91,390 / 4,62420Normal
154 lbs (70 kg)108,262 / 4,62423Normal
170 lbs (78 kg)119,510 / 4,62426Overweight
190 lbs (86 kg)133,570 / 4,62429Overweight
210 lbs (95 kg)147,630 / 4,62432Obese
230 lbs (105 kg)161,690 / 4,62435Obese
250 lbs (114 kg)175,750 / 4,62438Obese
270 lbs (123 kg)189,810 / 4,62441Morbid Obesity

BMI Calculator for Height 69 Inches

WeightWeight (x 703 / ht x ht)BMIStatus
120 lbs (55 kg)84,360 / 4,76117.5Underweight
130 lbs (59 kg)91,390 / 4,76119Normal
154 lbs (70 kg)108,262 / 4,76123Normal
170 lbs (78 kg)119,510 / 4,76125Overweight
190 lbs (86 kg)133,570 / 4,76128Overweight
210 lbs (95 kg)147,630 / 4,76131Obese
230 lbs (105 kg)161,690 / 4,76134Obese
250 lbs (114 kg)175,750 / 4,76137Obese
270 lbs (123 kg)189,810 / 4,76140 Morbid Obesity

BMI Calculator for Height 70 Inches

WeightWeight (x 703 / ht x ht)BMIStatus
121 lbs (55 kg)85,063 / 4,90017.3Underweight
130 lbs (59 kg) 91,390 / 4,90018.6Normal
154 lbs (70 kg)108,262 / 4,90022Normal
170 lbs (78 kg)119,510 / 4,90024Normal
190 lbs (86 kg)133,570 / 4,90027Overweight
210 lbs (95 kg) 147,630 / 4,90030Overweight
230 lbs (105 kg)161,690 / 4,90033Obese
250 lbs (114 kg)175,750 / 4,90036Obese
270 lbs (123 kg)189,810 / 4,90039Obese
290 lbs (132 kg)203,870 / 4,90041.6Morbid Obesity

BMI Calculator for Height 71 Inches

WeightWeight (x 703 / ht x ht)BMIStatus
130 lbs (59 kg)91,390 / 5,04118Underweight
154 lbs (70 kg)108,262 / 5,04121.5Normal
170 lbs (78 kg)119,510 / 5,04124Normal
190 lbs (86 kg)133,570 / 5,04126.5Overweight
210 lbs (95 kg)147,630 / 5,04129Overweight
230 lbs (105 kg)161,690 / 5,04132Obese
250 lbs (114 kg)175,750 / 5,04135Obese
270 lbs (123 kg)189,810 / 5,04137.5Obese
290 lbs (132 kg)203,870 / 5,04140.5Morbid Obesity

BMI Calculator for Height 72 Inches

WeightWeight (x 703 / ht x ht)BMIStatus
132 lbs (60 kg)92,796 / 5,18417.9Underweight
154 lbs (70 kg)108,262 / 5,18421Normal
170 lbs (78 kg)119,510 / 5,18423Normal
190 lbs (86 kg)133,570 / 5,18426Overweight
210 lbs (95 kg)147,630 / 5,18428.5Overweight
230 lbs (105 kg)161,690 / 5,18431Obese
250 lbs (114 kg)175,750 / 5,18434Obese
270 lbs (123 kg)189,810 / 5,18436.5Obese
290 lbs (132 kg)203,870 / 5,18439.5Obese
300 lbs (136 kg)210,900 / 5,18441Morbid Obesity

Note: We rounded up (or down) some of the final BMI figures to the nearest half point. So, having a BMI of 36.78 would produce an upwards rounded figure of 37 (pardon the pun). Likewise, a BMI reading of 36.70 rounds down to 36.5.