WBC Count (TLC)
What it measures
Indian reports print this per cubic millimetre, written as cells/cumm — the same volume as a microlitre, so /µL is the identical unit under another name. International reports often use 10⁹/L instead, where one unit equals a thousand cells/cumm: 7.5 × 10⁹/L and 7,500 cells/cumm are the same count. That thousand-fold gap is the single easiest misreading on a blood report.
Reading it in a different unit
This lab reports WBC Count (TLC) in /ul. Reports from other labs — especially ones using European or US-style formatting — sometimes use a different unit for the same measurement. The relationship between them:
/cumm, cells/cumm are the same value as /ul under a different name — nothing to calculate, just a different label on the same number.
| Reported unit | How it relates to /ul |
|---|---|
| 10*9/l | /ul = 10*9/l × 1000 |
| 10^9/l | /ul = 10^9/l × 1000 |
| k/ul | /ul = k/ul × 1000 |
| thou/ul | /ul = thou/ul × 1000 |
Unit conversions verified against published molar masses and LOINC definitions. This is not a diagnostic reference — the normal range for any test is set by the laboratory that ran it and printed on your report.
Why this matters for tracking a trend
A value plotted next to earlier results only tells you something if every point is on the same scale. Two readings of the same test from two different labs, in two different units, can look like a dramatic change when nothing about your actual result changed — only the unit did. Converting to one scale before comparing is what keeps a trend line honest.
LOINC codes for this test: 26464-8, 6690-2.
General information about laboratory measurement, not medical advice. Whether a specific result is normal for you depends on your lab's reference range, your history and your doctor's judgement — not on this page.