1 1/2 Diameter?

1 1/2 Diameter would be about what girth size?

Not quite 4 3/4 inches. circumference is pi x diameter. 3.142 x 1.5 = 4.713

Yeah, if the dick is perfectly round, that’s right. Most dicks are not very round.

Circumference of an ellipse calculator: Ellipse Circumference Calculator

More forumlae than you want to know:

The penis isn’t an ellipse either, but it’s closer than a circle.

This is the Diameter of that Krystal Wabbit Blue vibrator with the clit stimulator. My girl was thinking of getting one and that was the diameter of it plus it has 5’ of insertable usage.

thanks

All I can say is never buy her one bigger than you.