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Red Blood Cells (RBC)
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Red Blood Cells (RBC)
COMMON RANGE
4.35 – 5.65
×10⁶/µL
2.58
6.39
M
Mayo Clinic Laboratories
Adult Male
↗
See all sources ↓
CONVERT & COMPARE
×10⁶/µL
=
5
×10¹²/L
Reference ranges across 10+ sources
Adult reference ranges from 20 entries across 10 trusted sources, shown in ×10⁶/µL. Compare side-by-side.
SOURCE
SEX
AGE
RANGE
VISUAL
CITE
A
ARUP Laboratories
Male
≥18
4.5 – 5.8 ×10⁶/µL
↗
A
ARUP Laboratories
Female
≥18
4 – 5.2 ×10⁶/µL
↗
M
Mayo Clinic Laboratories
Male
≥18
4.35 – 5.65 ×10⁶/µL
↗
M
Mayo Clinic Laboratories
Female
≥18
3.92 – 5.13 ×10⁶/µL
↗
Q
Quest Diagnostics
Male
≥18
4.5 – 5.9 ×10⁶/µL
↗
Q
Quest Diagnostics
Female
≥18
4 – 5.2 ×10⁶/µL
↗
L
Labcorp
Male
≥18
4.3 – 5.7 ×10⁶/µL
↗
L
Labcorp
Female
≥18
3.9 – 5.2 ×10⁶/µL
↗
W
World Health Organization
Male
≥18
4.5 – 5.5 ×10⁶/µL
↗
W
World Health Organization
Female
≥18
3.8 – 4.8 ×10⁶/µL
↗
R
RCPA / AACB Australasian Harmonised Reference Intervals
Male
≥18
4.5 – 5.5 ×10⁶/µL
↗
R
RCPA / AACB Australasian Harmonised Reference Intervals
Female
≥18
3.8 – 4.8 ×10⁶/µL
↗
N
Nordic Reference Interval Project
Male
≥18
4.25 – 5.71 ×10⁶/µL
↗
N
Nordic Reference Interval Project
Female
≥18
3.87 – 5.06 ×10⁶/µL
↗
U
UK Pathology Harmony
Male
≥18
4.5 – 5.5 ×10⁶/µL
U
UK Pathology Harmony
Female
≥18
3.8 – 4.8 ×10⁶/µL
J
JSCC / JAMT Japan
Male
≥18
4.35 – 5.55 ×10⁶/µL
J
JSCC / JAMT Japan
Female
≥18
3.86 – 4.92 ×10⁶/µL
T
Turkey Nationwide Reference Intervals
Male
≥18
4.43 – 6.07 ×10⁶/µL
T
Turkey Nationwide Reference Intervals
Female
≥18
3.96 – 5.31 ×10⁶/µL
A
ARUP Laboratories
Male · ≥18
↗
4.5 – 5.8 ×10⁶/µL
A
ARUP Laboratories
Female · ≥18
↗
4 – 5.2 ×10⁶/µL
M
Mayo Clinic Laboratories
Male · ≥18
↗
4.35 – 5.65 ×10⁶/µL
M
Mayo Clinic Laboratories
Female · ≥18
↗
3.92 – 5.13 ×10⁶/µL
Q
Quest Diagnostics
Male · ≥18
↗
4.5 – 5.9 ×10⁶/µL
Q
Quest Diagnostics
Female · ≥18
↗
4 – 5.2 ×10⁶/µL
L
Labcorp
Male · ≥18
↗
4.3 – 5.7 ×10⁶/µL
L
Labcorp
Female · ≥18
↗
3.9 – 5.2 ×10⁶/µL
W
World Health Organization
Male · ≥18
↗
4.5 – 5.5 ×10⁶/µL
W
World Health Organization
Female · ≥18
↗
3.8 – 4.8 ×10⁶/µL
R
RCPA / AACB Australasian Harmonised Reference Intervals
Male · ≥18
↗
4.5 – 5.5 ×10⁶/µL
R
RCPA / AACB Australasian Harmonised Reference Intervals
Female · ≥18
↗
3.8 – 4.8 ×10⁶/µL
N
Nordic Reference Interval Project
Male · ≥18
↗
4.25 – 5.71 ×10⁶/µL
N
Nordic Reference Interval Project
Female · ≥18
↗
3.87 – 5.06 ×10⁶/µL
U
UK Pathology Harmony
Male · ≥18
4.5 – 5.5 ×10⁶/µL
U
UK Pathology Harmony
Female · ≥18
3.8 – 4.8 ×10⁶/µL
J
JSCC / JAMT Japan
Male · ≥18
4.35 – 5.55 ×10⁶/µL
J
JSCC / JAMT Japan
Female · ≥18
3.86 – 4.92 ×10⁶/µL
T
Turkey Nationwide Reference Intervals
Male · ≥18
4.43 – 6.07 ×10⁶/µL
T
Turkey Nationwide Reference Intervals
Female · ≥18
3.96 – 5.31 ×10⁶/µL
Ages 0–17 (CALIPER)
PEDIATRIC
5 age- and sex-stratified entries from the Canadian Laboratory Initiative on Pediatric Reference Intervals.
SOURCE
SEX
AGE
RANGE
VISUAL
CITE
C
CALIPER — Canadian Pediatric Reference Intervals
All
0–1
2.9 – 5.16 ×10⁶/µL
↗
C
CALIPER — Canadian Pediatric Reference Intervals
Male
1–14
4.1 – 5.08 ×10⁶/µL
↗
C
CALIPER — Canadian Pediatric Reference Intervals
Female
1–14
3.94 – 4.97 ×10⁶/µL
↗
C
CALIPER — Canadian Pediatric Reference Intervals
Male
14–19
4.26 – 5.6 ×10⁶/µL
↗
C
CALIPER — Canadian Pediatric Reference Intervals
Female
14–19
3.95 – 5.13 ×10⁶/µL
↗
C
CALIPER — Canadian Pediatric Reference Intervals
All · 0–1
↗
2.9 – 5.16 ×10⁶/µL
C
CALIPER — Canadian Pediatric Reference Intervals
Male · 1–14
↗
4.1 – 5.08 ×10⁶/µL
C
CALIPER — Canadian Pediatric Reference Intervals
Female · 1–14
↗
3.94 – 4.97 ×10⁶/µL
C
CALIPER — Canadian Pediatric Reference Intervals
Male · 14–19
↗
4.26 – 5.6 ×10⁶/µL
C
CALIPER — Canadian Pediatric Reference Intervals
Female · 14–19
↗
3.95 – 5.13 ×10⁶/µL
Related biomarkers
Often tested alongside red blood cells (rbc) or part of the same panel.
White Blood Cells (WBC)
Blood
Hemoglobin (Hgb)
Blood
Hematocrit (Hct)
Blood
Platelets (PLT)
Blood
Mean Corpuscular Volume (MCV)
Blood
Mean Corpuscular Hemoglobin (MCH)
Blood
Sources
A
ARUP Laboratories
M
Mayo Clinic Laboratories
Q
Quest Diagnostics
L
Labcorp
W
World Health Organization
R
RCPA / AACB Australasian Harmonised Reference Intervals
N
Nordic Reference Interval Project
U
UK Pathology Harmony
J
JSCC / JAMT Japan
T
Turkey Nationwide Reference Intervals
C
CALIPER — Canadian Pediatric Reference Intervals
Last updated 2026-05-02
This page aggregates publicly available reference data and clinical information from Mayo Clinic Laboratories and other sources. For general wellness information only — not medical advice. For diagnosis or treatment of any condition, talk to a qualified clinician.
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