When measuring a baby, from which landmarks do you measure?

• A. From head to toe
• B. From top of head to heel
• C. From chin to knee
• D. From shoulder to hip

Answer: (B)

In infants, length is measured from the very top of the head (vertex) to the heel, with the baby lying flat. This gives the full cranial–caudal length and provides a consistent, reproducible measurement for tracking growth on pediatric charts. The other options miss or misdefine the landmarks: chin to knee doesn’t capture the entire body length, shoulder to hip measures only part of the torso, and a vague “head to toe” lacks precise points. Using the top of the head to the heel ensures accuracy and comparability across visits.