Here is a simple way to get an estimate of erection weight. You will need: 1. A scale 2. A water tight container larger than your penis. 3. An overflow pan to keep the water from going everywhere. 4. Pencil to right down data 5. Basic math skills (or a calculator) First you need to fill the container to the tip top (must be to the point of over flowing) with water and place on the scale. don't spill Place the full container in your overflow pan. Now for the tricky part: You need to find a way to dip your fully erect penis into the full container. I'd recommend a push up style position. Make sure only to get what you want measured into the water. (This will probably mean holding back the testies) After letting the water overflow the edge of the container. Pull out. And re-weight it. Once you have that figure subtract it from the weight of the full container. And you'll have the weight of your full erection. Disclaimer: This is a scientific method but will mostly likely not produce an exact measurement, only and estimate. This uses the principle of displacement. The human body being made of about 70% water (an erect penis more so) will weight about the same as the amount of water it displaces.