Lab reference range comparison
Range Atlas
Different labs, countries, and clinicians draw the line for "normal" in different places. Range Atlas puts those reference ranges and targets side by side, one biomarker at a time, so you can see how much the sources disagree. Pick a biomarker to compare.
Vitamin D 25-hydroxy
ng/mL · 8 sources · 7.0x spread
Hemoglobin A1c
% · 10 sources · 1.8x spread
Apolipoprotein B
mg/dL · 9 sources · 2.2x spread
Fasting glucose
mg/dL · 5 sources · 1.8x spread
Fasting insulin
uIU/mL · 4 sources · 13.2x spread
High-sensitivity CRP
mg/L · 5 sources · 5.5x spread
LDL cholesterol
mg/dL · 5 sources · 2.7x spread
HDL cholesterol
mg/dL · 4 sources · 1.5x spread
Triglycerides
mg/dL · 5 sources · 2.8x spread
Thyroid stimulating hormone (TSH)
mIU/L · 6 sources · 18.3x spread
Ferritin
ng/mL · 7 sources · 68.2x spread
Homocysteine
umol/L · 7 sources · 3.2x spread
Gamma-glutamyl transferase (GGT)
U/L · 6 sources · 12.0x spread
Albumin
g/dL · 4 sources · 1.6x spread
Uric acid
mg/dL · 5 sources · 2.1x spread
Sex hormone-binding globulin (SHBG)
nmol/L · 5 sources · 10.2x spread
Testosterone, total
ng/dL · 6 sources · 135.0x spread
Range Atlas is AI-collected and not medically reviewed. It is for informational purposes only, meant to help curious people start a conversation with a healthcare professional. It shows how sources disagree, not whether a value is good or bad for you.