| | Family Health | Teen Health What is the average height and weight for a 21 month old girl? According to the World Health Organization (WHO), the average height and weight for a 21-month-old girl are: - Height: 83.8 cm (33 inches) - Weight: 11.7 kg (25.8 pounds) Teen Health - Related Articles Post Lung Cancer Surgery Complications Protein in your urine and im pregnant? Is a BMI of 19 skinny? How to Get Reimbursed for Medicare Patients What does it mean If your period only lasts a day? The Pritikin Diet How to Treat Shingles Pain with Natural Remedies
