A simple equation exists to determine how many milliliters the nurse will feed the baby with each feeding: (X kcal/kg/day)(Y weight)/(Z feeds/day)(W kcal/oz). The neonate’s weight is known: 1.3 kg. Feeding every 3 hours results in 8 feedings in a day. In each milliliter of 24 kcal/oz formula, there are 0.8 kcals.

$$ { 120 kcal \over kg/day} * 1.3kg = 156 kcal/day $$ $$ { 156 kcal \over day} * {1 \text{ day} \over 8 \text{ feedings}} * {1mL \over 0.8 kcal} = 24 mL $$