Plenty of times.
I use to measure it quite regularly as a teen (ages 13-15 specifically) because I was really insecure about size and worried that when a girl saw it she would laugh at me.
I still measure it from time to time due to the fact that I was a late bloomer and can probably safely assume that at almost 21 I may still be going through puberty as I'm still growing and becoming hairier in bursts (my entire body, not my penis).
So yeah, I've measured length and girth both flaccid and erect and all the imaginable stages in between.
I use to measure it quite regularly as a teen (ages 13-15 specifically) because I was really insecure about size and worried that when a girl saw it she would laugh at me.
I still measure it from time to time due to the fact that I was a late bloomer and can probably safely assume that at almost 21 I may still be going through puberty as I'm still growing and becoming hairier in bursts (my entire body, not my penis).
So yeah, I've measured length and girth both flaccid and erect and all the imaginable stages in between.