Hi Phil,<br> <br> The normal range for total testosterone is 300 - 1000 ng/dl. <br> <br> We provide a lot more information about how testosterone level is measured:<br> <br> <a href="http://www.seekwellness.com/andropause/testosterone.htm#tests" target="_blank">http://www.seekwellness.com/andropause/testosterone.htm#tests</a>