Helvy tool
Testosterone by Age Checker
A testosterone result means little without your age beside it. Reference ranges shift over the decades. Enter your age and your total testosterone to see where it sits.
How this is worked out
Age bands are the total testosterone reference ranges cited in our testosterone-by-age guide: 8.7 to 29.0 nmol/L for ages 18 to 49 and 6.7 to 25.7 nmol/L from age 50, drawn from BSSM guidance and UK laboratory standards. Ranges are indicative; individual labs vary. nmol/L to ng/dL uses a factor of 28.842.
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