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This website has been developed in part through an educational grant from Besins Healthcare (UK) Ltd. The company has no editorial control on its content.
IMPORTANT LIMITATIONS: This calculator is an educational tool and should not be solely relied upon in making any clinical decision. No responsibility whatsoever is assumed for its correctness or suitability for any given purpose. Please consult your health care provider first for any health concerns.
Additionally, the calculated free and bioavailable testosterone should not be relied upon in situations with potential massive interference by steroids binding to SHBG (e.g. in women during pregnancy, in men during treatment inducing high levels of DHT or Mesterolone.