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Blood Health

MCV Test

The average size of your red blood cells. Helps classify the type of anemia when one is present.

Physician reviewed
Results in 1–3 days
4,000+ lab locations

What is MCV?

The average size of your red blood cells. Helps classify the type of anemia when one is present.

MCV Reference Range

These are the typical adult reference ranges used by major US labs. Your report will include the specific range used by the lab that processed your sample.

PopulationRange
age 18+80.0 – 100 fL

Reference ranges are educational. Always interpret your result with the specific range printed on your lab report and discuss anything outside the range with a clinician.

What your MCV result may mean

Higher than range

Often reflects vitamin B12 or folate deficiency, alcohol use, or certain medications.

Lower than range

Often reflects iron deficiency or thalassemia.

Educational only — not a diagnosis. Many factors can influence a single result. Discuss anything that concerns you with a healthcare provider.

Related Blood Health biomarkers

Markers commonly tested alongside MCV.

Frequently asked

No. TestWell's licensed physician network reviews and approves your order — usually within minutes. You can place an order online without an in-person visit or a referral from your own doctor.

Ready to test your mcv?

Order in two minutes, get physician-approved, and visit a lab the same day. Starts at $21.99.