Abstract : Globally, the prevalence of anemia was highest among children under five years, at 39.7%. The main factor is iron deficiency (ID). However, the particular iron status parameter for early detection of ID in babies has yet to be determined. To establish reference intervals for reticulocyte hemoglobin equivalent (Ret-He) in healthy term babies seven days after birth. A cross-sectional study of Ret-He in healthy-term babies seven days after delivery was conducted from April to December 2018 at Idaman Banjarbaru Hospital. Two hundred seventy-seven healthy-term babies met the inclusion criteria. There were 145 (52.35%) male babies and 132 (47.65%) female babies. The reference interval for Ret-He at P2.5-P97.5, P3-P97, and mean ±2SD was 29.06 to 40.11pg, 29.24 to 39.97 pg, 29,46 to 38.01 pg, respectively. In addition, the reference interval for male babies Ret-He at P2.5-P97.5, P3-P97, and mean ±2SD was 28.17 to 41.44 pg, 28.54 to 41.25 pg, and 29.28 to 41.24 pg, respectively. The reference interval for female babies Ret-He at P2.5-P97.5, P3-P97, and mean ±2SD was 29.73 to 39.80, 30.00 to 39.60, 29.71 to 0.43 pg, respectively. Conclusion: The reference interval for Ret-He in healthy-term babies one week after birth can be used as a benchmark.