Age		Hemoglobin, g/dL (g/L)	Hematocrit (%)	MCV, µm3 (fL)	MCHC, g/dL (g/L)	Reticulocytes
26 to 30 weeks' gestation*		13.4 (134)	41.5 (0.42)	118.2 (118.2)	37.9 (379)	—
28 weeks' gestation		14.5 (145)	45 (0.45)	120 (120)	31.0 (310)	(5 to 10)
32 weeks' gestation		15.0 (150)	47 (0.47)	118 (118)	32.0 (320)	(3 to 10)
Term† (cord)		16.5 (165)	51 (0.51)	108 (108)	33.0 (330)	(3 to 7)
1 to 3 days		18.5 (185)	56 (0.56)	108 (108)	33.0 (330)	(1.8 to 4.6)
2 weeks		16.6 (166)	53 (0.53)	105 (105)	31.4 (314)
1 month		13.9 (139)	44 (0.44)	101 (101)	31.8 (318)	(0.1 to 1.7)
2 months		11.2 (112)	35 (0.35)	95 (95)	31.8 (318)
6 months		12.6 (126)	36 (0.36)	76 (76)	35.0 (350)	(0.7 to 2.3)
6 months to 2 years		12.0 (120)	36 (0.36)	78 (78)	33.0 (330)
2 to 6 years		12.5 (125)	37 (0.37)	81 (81)	34.0 (340)	(0.5 to 1.0)
6 to 12 years		13.5 (135)	40 (0.40)	86 (86)	34.0 (340)	(0.5 to 1.0)
12 to 18 years
	Male	14.5 (145)	43 (0.43)	88 (88)	34.0 (340)	(0.5 to 1.0)
	Female	14.0 (140)	41 (0.41)	90 (90)	34.0 (340)	(0.5 to 1.0)
Adult
	Male	15.5 (155)	47 (0.47)	90 (90)	34.0 (340)	(0.8 to 2.5)
	Female	14.0 (140)	41 (0.41)	90 (90)	34.0 (340)	(0.8 to 4.1)