To reach the ideal weight, you must download this file click here

IBW for overweight or obese adults can be estimated based on the following formula:

Female: 45.5 kg + 0.91(height – 152.4 cm) or 45.5 kg + 2.3 kg for each inch over 5 ft

Male: 50.0 kg + 0.91(height – 152.4 cm) or 50 kg + 2.3 kg for each inch over 5 ft

For example, a 90 kg man who is 5’ 5” tall BW = 50 + (2.3 x 5) = 61.5 kg

Maintenance fluid= (4 x 10) + (2 x 10) + (1 x 41.5) = 101.5 mL/hr (~2.4 liters/day)

Ideal Body Weight Estimation - Children

There is no consensus on the best method used to calculate IBW for children. If child is overweight or obese (for example, BMI-for- age ≥ 85% and ≥ 95%, respectively), use US growth charts.

Calculate IBW using Body Mass Index Method which defines IBW = [BMI at the 50th percentile for that child's age × (Height in m)2]

For example, the IBW of a girl who is 4 years old and 105 cm tall (BMI at 50th percentile for age/sex is 15.3).2

IBW = 15.3 × 1.05 × 1.05 = 16.9 kg