Step 1: Get An Erection
You'll need to be fully erect to accurately measure your size and ensure that you choose the correct Bathmate size.
Step 2: Measure Your Length
Measure your erect penis length with a ruler lightly pressed onto your pubic bone, recording from the bone to the penis tip.
Step 3: Measure Your Girth
Wrap a Measuring Gauge or piece of string around your penis, recording the full measurement of the circumference.