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RBC unit converter

Convert RBC between ×10⁶/µL and cells/µL. Type in either box. The factors come from our catalog and are checked by code.

AI-verified against cited sources. Awaiting expert reviewLast reviewed 2026-10-03

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1 ×10⁶/µL = 1,000,000 cells/µL. Nothing you type here leaves your browser.

The conversion

  • 1 ×10⁶/µL = 1,000,000 cells/µLFrom ×10⁶/µL to cells/µL: multiply by 1,000,000. Back again: divide by 1,000,000.

×10⁶/µL and ×10¹²/L give the same number.

Common values

From zero to about twice the usual upper limit, plus the usual limits themselves.

RBC values in ×10⁶/µL and cells/µL
×10⁶/µLsame as ×10¹²/Lcells/µL
22,000,000
3.93,900,000
44,000,000
4.34,300,000
55,000,000
5.75,700,000
66,000,000
88,000,000
1010,000,000

Usual ranges in each unit

What labs print as the reference range, by who was tested. Sources for each range are on the RBC page.

Usual ranges for RBC in ×10⁶/µL and cells/µL
Who×10⁶/µLcells/µL
Men, 18+4.3–5.74,300,000–5,700,000
Women, 18+3.9–53,900,000–5,000,000