To determine values of bone density of Turkish infants under one year of age. Design: Cross sectional. Methods: This study included 1, 2, 4, 6, 9 and 12 months old 164 male and female healthy infants who were evaluated by dual energy X-ray absorbtiometry. Results: The values for each age were computed. There was no significant difference between boys and girls. A significant relationship was found between bone mineral density, bone mineral content, total body calcium and calcium/body surface, and age, height, body weight, head circumference and body surface area. Multiple regression analysis showed that body mineral density was affected by weight, height, head circumference and body mass index. Body mineral content and total calcium content were affected by weight and height. Conclusion: The results will serve as reference values for healthy 1-12 months old Turkish infants.