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Prostate-Specific Antigen (PSA) Unit Converter
Prostate-Specific Antigen (PSA) is a protein produced by both normal and malignant cells of the prostate gland. The PSA test is the primary tool used for screening for prostate cancer and monitoring its progression or recurrence.
This converter facilitates switching between the standard mass units used in clinical reports (ng/mL, μg/L). In most contexts, these units are numerically identical, but verification is essential when comparing results from different laboratories or countries.
Standard Mass Units
Most CommonNanograms per milliliter (Numerically equivalent to μg/L).
Other Equivalents
Clinical Context
Reference Ranges (Screening):
• < 4.0 ng/mL: Generally considered normal, though lower cut-offs (e.g., 2.5 ng/mL) may be used for younger men.
• 4.0 – 10.0 ng/mL: “Gray Zone” – often requires further evaluation (e.g., Free PSA %).
• > 10.0 ng/mL: Higher suspicion for prostate cancer.
Conversion Logic:
1 ng/mL = 1 μg/L.
1 ng/mL = 100 ng/dL.
Clinical References
How to Use This Converter
Follow these steps to normalize PSA values.
Enter Values
Input your laboratory results into the corresponding unit field (e.g., ng/mL).
Automatic Conversion
The calculator instantly updates all other fields. For PSA, ng/mL and μg/L will always show the same value.
Reset
Use the Clear button to reset all fields.
Frequently Asked Questions
Yes. 1 nanogram per milliliter is numerically identical to 1 microgram per liter.
Yes. PSA tends to increase with age as the prostate enlarges (BPH). Age-specific reference ranges are often used to improve specificity.