Inexpensive angle measuring device

[Cernfan]

A simple way to measure the curvature in your penis is by using a simple angle measure protractor you can buy on line for about $5.  I found this one on AMAZON, but I'm sure they are readily available everywhere they sell school supplies.

https://www.amazon.com/gp/product/B0BGCBLMQP/ref=ox_sc_act_title_1?smid=A2BHG1YIRCB1SN&psc=1

Make sure you are fully erect while measuring and if possible, have someone assist you.
Record your measurement and the date and track your angle.  I think it's more accurate than a photo.