What is the normal range for PSA, Free?

Typical adult ranges are shown on this page in %. The reference range printed on your own lab report takes precedence, because ranges differ between laboratories and methods.

Labwise › Tests › Hormones

PSA, Free%

Free PSA is the unbound fraction, usually reported as a percentage of total PSA.

See your own PSA, Free on its range.

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What PSA, Free measures

Free PSA is the unbound fraction, usually reported as a percentage of total PSA.

If your PSA, Free is low

A lower free PSA percentage is one of the factors urologists consider alongside total PSA.

Commonly associated with

Prostate conditions
Prostate enlargement

Worth asking your clinician: How it fits with total PSA and other findings.

If your PSA, Free is high

A higher free PSA percentage is generally reassuring.

Worth asking your clinician: Nothing specific.

Typical reference range

Group	Typical range
Men	over 25 %

Typical adult values used by many US labs. Your own report prints the range your lab validated for its method, and that range is the one that counts. Labwise always uses the printed range first.

If it is within range

Your free PSA percentage is within the range printed by your lab.

Also listed as

Free PSA, PSA FREE, Free PSA %, % Free PSA

Related tests

This page is general information about what a laboratory test measures and what results outside a reference range are commonly associated with. It is not medical advice, does not diagnose any condition and does not replace your clinician. Discuss your results with your healthcare provider.