Sep 26, 2025 · Learn about normal white blood cell count ranges, what the ranges mean for each age group, and why a physician might order this type of blood test.

May 21, 2025 · The normal white blood cell count in a healthy adult is between 4,000 and 11,000 WBCs per microliter (μl or mcL) or cubic millimeter (mm3) of blood, though this may differ …

Mar 14, 2024 · During a CBC test, a special computer counts and looks at the size of red blood cells (erythrocytes), white blood cells (leukocytes) and platelets (thrombocytes). If your …

Mar 7, 2024 · A normal white blood cell count can mean your immune system is functioning as it should. The normal white blood cell count range is typically between 4,000 and …

Feb 3, 2025 · Your provider may order this test to help diagnose conditions such as: The normal number of WBCs in the blood is 4,500 to 11,000 WBCs per microliter (4.5 to 11.0 × 10 9 /L). …

White blood cells work to destroy any foreign virus, fungus, or bacteria that enter your body. When you get sick, your white blood cell count is higher than normal.

Jul 22, 2025 · A typical reference range for a total white blood cell count in adults is between 4,000 and 11,000 cells per microliter of blood. These normal ranges can vary slightly between …

Dec 2, 2025 · White blood cell count measures the number of infection-fighting leukocytes in the blood, with normal adult ranges typically between 4,500 and 11,000 cells per microliter, …

Understand normal WBC levels with our free White Blood Cell Count Calculator. Learn how WBC impacts immunity, and interpret results.

What Is a Normal White Blood Cell Count? A normal WBC count varies slightly depending on age and health, but generally falls within the following range: If your WBC count is below 4,500 …