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Ideal Weight worksheet

Grades 6–7 · CCSS 6.EE.A.2.c, 6.RP.A.3.d

Solve each problem and show your work. Round answers to 2 decimal places where needed.

  1. Problem 1.
    • Units: Metric (cm, kg)
    • Sex: Male
    • Height: 240 cm

    Find: Devine formula

  2. Problem 2.
    • Units: Metric (cm, kg)
    • Sex: Female
    • Height: 200 cm

    Find: Devine formula

  3. Problem 3.
    • Units: US (ft, in, lb)
    • Sex: Male
    • Height (feet): 5 ft
    • Height (inches): 9 in

    Find: Devine formula

  4. Problem 4.
    • Units: US (ft, in, lb)
    • Sex: Male
    • Height (feet): 5 ft
    • Height (inches): 8 in

    Find: Devine formula

  5. Problem 5.
    • Units: US (ft, in, lb)
    • Sex: Female
    • Height (feet): 5 ft
    • Height (inches): 11 in

    Find: Devine formula

  6. Problem 6.
    • Units: Metric (cm, kg)
    • Sex: Male
    • Height: 180 cm

    Find: Devine formula

  7. Problem 7.
    • Units: US (ft, in, lb)
    • Sex: Male
    • Height (feet): 5 ft
    • Height (inches): 10 in

    Find: Devine formula

  8. Problem 8.
    • Units: US (ft, in, lb)
    • Sex: Female
    • Height (feet): 5 ft
    • Height (inches): 9 in

    Find: Devine formula

  9. Problem 9.
    • Units: US (ft, in, lb)
    • Sex: Male
    • Height (feet): 6 ft
    • Height (inches): 8 in

    Find: Devine formula

  10. Problem 10.
    • Units: Metric (cm, kg)
    • Sex: Male
    • Height: 190 cm

    Find: Devine formula

Answer key: Ideal Weight worksheet

  1. 1. Devine formula: 129.3 kg

    1. Change your height to inches (there are 2.54 cm in an inch), then find how far it is above 5 feet (60 inches)

      2402.54−60=34.49 in
    2. Devine: start at 50 kg and add 2.3 kg for each inch over 5 ft

      50+2.3×34.49=129.32 kg
    3. Robinson: start at 52 kg and add 1.9 kg for each inch over 5 ft

      52+1.9×34.49=117.53 kg
    4. Miller: start at 56.2 kg and add 1.41 kg for each inch over 5 ft

      56.2+1.41×34.49=104.83 kg
    5. Hamwi: start at 106 lb and add 6 lb for each inch over 5 ft, then convert to kg

      106+6×34.49=312.93 lb=141.94 kg
    6. Find the healthy-BMI weight range: multiply your height in meters by itself, then by 18.5 and by 24.9

      18.5×2.42=106.6 kg; 24.9×2.42=143.4 kg
  2. 2. Devine formula: 88.6 kg

    1. Change your height to inches (there are 2.54 cm in an inch), then find how far it is above 5 feet (60 inches)

      2002.54−60=18.74 in
    2. Devine: start at 45.5 kg and add 2.3 kg for each inch over 5 ft

      45.5+2.3×18.74=88.6 kg
    3. Robinson: start at 49 kg and add 1.7 kg for each inch over 5 ft

      49+1.7×18.74=80.86 kg
    4. Miller: start at 53.1 kg and add 1.36 kg for each inch over 5 ft

      53.1+1.36×18.74=78.59 kg
    5. Hamwi: start at 100 lb and add 5 lb for each inch over 5 ft, then convert to kg

      100+5×18.74=193.7 lb=87.86 kg
    6. Find the healthy-BMI weight range: multiply your height in meters by itself, then by 18.5 and by 24.9

      18.5×22=74 kg; 24.9×22=99.6 kg
  3. 3. Devine formula: 155.9 lb

    1. Find how many inches you are above 5 feet (60 inches)

      5×12+9−60=9 in
    2. Devine: start at 50 kg and add 2.3 kg for each inch over 5 ft, then convert to lb

      50+2.3×9=70.7 kg=155.87 lb
    3. Robinson: start at 52 kg and add 1.9 kg for each inch over 5 ft, then convert to lb

      52+1.9×9=69.1 kg=152.34 lb
    4. Miller: start at 56.2 kg and add 1.41 kg for each inch over 5 ft, then convert to lb

      56.2+1.41×9=68.89 kg=151.88 lb
    5. Hamwi: start at 106 lb and add 6 lb for each inch over 5 ft

      106+6×9=160 lb
    6. Find the healthy-BMI weight range: multiply your height in meters by itself, then by 18.5 and by 24.9

      18.5×1.75262=56.8 kg; 24.9×1.75262=76.5 kg
  4. 4. Devine formula: 150.8 lb

    1. Find how many inches you are above 5 feet (60 inches)

      5×12+8−60=8 in
    2. Devine: start at 50 kg and add 2.3 kg for each inch over 5 ft, then convert to lb

      50+2.3×8=68.4 kg=150.8 lb
    3. Robinson: start at 52 kg and add 1.9 kg for each inch over 5 ft, then convert to lb

      52+1.9×8=67.2 kg=148.15 lb
    4. Miller: start at 56.2 kg and add 1.41 kg for each inch over 5 ft, then convert to lb

      56.2+1.41×8=67.48 kg=148.77 lb
    5. Hamwi: start at 106 lb and add 6 lb for each inch over 5 ft

      106+6×8=154 lb
    6. Find the healthy-BMI weight range: multiply your height in meters by itself, then by 18.5 and by 24.9

      18.5×1.72722=55.2 kg; 24.9×1.72722=74.3 kg
  5. 5. Devine formula: 156.1 lb

    1. Find how many inches you are above 5 feet (60 inches)

      5×12+11−60=11 in
    2. Devine: start at 45.5 kg and add 2.3 kg for each inch over 5 ft, then convert to lb

      45.5+2.3×11=70.8 kg=156.09 lb
    3. Robinson: start at 49 kg and add 1.7 kg for each inch over 5 ft, then convert to lb

      49+1.7×11=67.7 kg=149.25 lb
    4. Miller: start at 53.1 kg and add 1.36 kg for each inch over 5 ft, then convert to lb

      53.1+1.36×11=68.06 kg=150.05 lb
    5. Hamwi: start at 100 lb and add 5 lb for each inch over 5 ft

      100+5×11=155 lb
    6. Find the healthy-BMI weight range: multiply your height in meters by itself, then by 18.5 and by 24.9

      18.5×1.80342=60.2 kg; 24.9×1.80342=81 kg
  6. 6. Devine formula: 75 kg

    1. Change your height to inches (there are 2.54 cm in an inch), then find how far it is above 5 feet (60 inches)

      1802.54−60=10.87 in
    2. Devine: start at 50 kg and add 2.3 kg for each inch over 5 ft

      50+2.3×10.87=74.99 kg
    3. Robinson: start at 52 kg and add 1.9 kg for each inch over 5 ft

      52+1.9×10.87=72.65 kg
    4. Miller: start at 56.2 kg and add 1.41 kg for each inch over 5 ft

      56.2+1.41×10.87=71.52 kg
    5. Hamwi: start at 106 lb and add 6 lb for each inch over 5 ft, then convert to kg

      106+6×10.87=171.2 lb=77.65 kg
    6. Find the healthy-BMI weight range: multiply your height in meters by itself, then by 18.5 and by 24.9

      18.5×1.82=59.9 kg; 24.9×1.82=80.7 kg
  7. 7. Devine formula: 160.9 lb

    1. Find how many inches you are above 5 feet (60 inches)

      5×12+10−60=10 in
    2. Devine: start at 50 kg and add 2.3 kg for each inch over 5 ft, then convert to lb

      50+2.3×10=73 kg=160.94 lb
    3. Robinson: start at 52 kg and add 1.9 kg for each inch over 5 ft, then convert to lb

      52+1.9×10=71 kg=156.53 lb
    4. Miller: start at 56.2 kg and add 1.41 kg for each inch over 5 ft, then convert to lb

      56.2+1.41×10=70.3 kg=154.98 lb
    5. Hamwi: start at 106 lb and add 6 lb for each inch over 5 ft

      106+6×10=166 lb
    6. Find the healthy-BMI weight range: multiply your height in meters by itself, then by 18.5 and by 24.9

      18.5×1.7782=58.5 kg; 24.9×1.7782=78.7 kg
  8. 8. Devine formula: 145.9 lb

    1. Find how many inches you are above 5 feet (60 inches)

      5×12+9−60=9 in
    2. Devine: start at 45.5 kg and add 2.3 kg for each inch over 5 ft, then convert to lb

      45.5+2.3×9=66.2 kg=145.95 lb
    3. Robinson: start at 49 kg and add 1.7 kg for each inch over 5 ft, then convert to lb

      49+1.7×9=64.3 kg=141.76 lb
    4. Miller: start at 53.1 kg and add 1.36 kg for each inch over 5 ft, then convert to lb

      53.1+1.36×9=65.34 kg=144.05 lb
    5. Hamwi: start at 100 lb and add 5 lb for each inch over 5 ft

      100+5×9=145 lb
    6. Find the healthy-BMI weight range: multiply your height in meters by itself, then by 18.5 and by 24.9

      18.5×1.75262=56.8 kg; 24.9×1.75262=76.5 kg
  9. 9. Devine formula: 211.6 lb

    1. Find how many inches you are above 5 feet (60 inches)

      6×12+8−60=20 in
    2. Devine: start at 50 kg and add 2.3 kg for each inch over 5 ft, then convert to lb

      50+2.3×20=96 kg=211.64 lb
    3. Robinson: start at 52 kg and add 1.9 kg for each inch over 5 ft, then convert to lb

      52+1.9×20=90 kg=198.42 lb
    4. Miller: start at 56.2 kg and add 1.41 kg for each inch over 5 ft, then convert to lb

      56.2+1.41×20=84.4 kg=186.07 lb
    5. Hamwi: start at 106 lb and add 6 lb for each inch over 5 ft

      106+6×20=226 lb
    6. Find the healthy-BMI weight range: multiply your height in meters by itself, then by 18.5 and by 24.9

      18.5×2.0322=76.4 kg; 24.9×2.0322=102.8 kg
  10. 10. Devine formula: 84 kg

    1. Change your height to inches (there are 2.54 cm in an inch), then find how far it is above 5 feet (60 inches)

      1902.54−60=14.8 in
    2. Devine: start at 50 kg and add 2.3 kg for each inch over 5 ft

      50+2.3×14.8=84.05 kg
    3. Robinson: start at 52 kg and add 1.9 kg for each inch over 5 ft

      52+1.9×14.8=80.13 kg
    4. Miller: start at 56.2 kg and add 1.41 kg for each inch over 5 ft

      56.2+1.41×14.8=77.07 kg
    5. Hamwi: start at 106 lb and add 6 lb for each inch over 5 ft, then convert to kg

      106+6×14.8=194.82 lb=88.37 kg
    6. Find the healthy-BMI weight range: multiply your height in meters by itself, then by 18.5 and by 24.9

      18.5×1.92=66.8 kg; 24.9×1.92=89.9 kg