Age: months. For days, enter e.g. 10d; for years and months, e.g. 2y 6m.
Weight: kg. For pounds and ounces, enter e.g. 8-4 for 8 lb 4 oz.
Length/height: cm. For inches, enter e.g. 19".
Measured: if the child was not measured in the usual position for the age (lying before 2 years, standing from 2), choose Lying or Standing for WHO's 0.7 cm adjustment (WHO Anthro software). Details: Sources and methods.
Head circumference: cm. For inches, enter e.g. 19".
For a corrected age (former preterm infants), use the WHO 0–24 months calculator.