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Platelets (Thrombocytes) Unit Converter
Platelets (Thrombocytes) are blood cell fragments essential for hemostasis (blood clotting). The platelet count is a key component of a Complete Blood Count (CBC).
This converter facilitates switching between the SI unit (× 109/L) used internationally and the conventional unit (× 103/μL or K/μL) used in the United States. Numerically, these values are identical (1:1 conversion), though the units differ.
SI Units / Standard
RecommendedBillions per liter (Numerically equivalent to thousands per microliter).
Absolute Counts
Clinical Context
Reference Range: Typically 150 – 450 × 109/L (150,000 – 450,000 /μL).
Terminology:
• Thrombocytopenia: Low platelet count (< 150). Increases bleeding risk.
• Thrombocytosis: High platelet count (> 450). May indicate inflammation, infection, or myeloproliferative disorders.
Conversion Logic:
1 × 109/L = 1 × 103/μL.
The value remains the same; only the unit label changes.
Clinical References
How to Use This Converter
Follow these steps to normalize Platelet values.
Enter Values
Input your laboratory results into the corresponding unit field (e.g., × 109/L).
Automatic Conversion
The calculator instantly updates all other fields. For platelets, the SI and Conventional values are usually identical.
Reset
Use the Clear button to reset all fields.
Frequently Asked Questions
Yes. A count of “150” usually implies units of thousands (× 103 or K/μL), which means 150,000 cells per microliter.
Spontaneous bleeding generally does not occur until counts drop below 20 (20,000/μL), but surgical risk increases below 50 (50,000/μL).