Helvy tool
Testosterone Unit Converter
UK labs report testosterone in nmol/L; US sources use ng/dL. Convert between them instantly, no account needed.
Conversion factor: 1 nmol/L = 28.842 ng/dL.
How this is worked out
Uses the standard conversion factor of 28.842, so 1 nmol/L = 28.842 ng/dL and 1 ng/dL = 0.0347 nmol/L. The same factor used throughout our testosterone guides.
This tool is for general wellbeing information and is not a diagnosis or medical advice. It places the numbers you enter in context; it cannot tell you whether you have a condition. If a result concerns you, or you have symptoms, speak to your GP.
Measure it properly
A calculator works on numbers you already have. The Complete Male Hormones panel is processed by a UKAS-accredited lab and reviewed by a qualified clinician.
See the Complete Male Hormones panel