How to Measure Penis Girth

Every guy will measure the length of his penis at least once in his lifetime, but fewer guys measure the girth, or thickness, of their penis. Which is really a shame because according to multiple studies (see references section), penis girth is more important to women than penis length.

Why Measure Penis Girth?

You're probably only interested in measuring your penis girth to show off to your buddies, and satisfy a little curiosity about where your penis stacks up against all the rest of them out there.

But there is actually one useful reason to measure the girth of your penis and that's to find a condom that fits properly. Penises come in a wide variety of girths, and not all condoms will fit you well.

Women measure their breasts to get a bra that fits, and guys should be measuring their penises to get a condom that fits.

What to use to Measure Penis Girth

the best tool for measuring your penis is a measuring tape

Measuring penis length is a little bit simpler because most rulers are straight and rigid, and most penises are also straight and rigid. But you can't measure around a penis with a straight ruler.

The best solution is a measuring tape (see that picture to the right). They wrap around a penis so easily you'd think they were made to measure penises. But they're actually made more for tailors and people who sew, so if there is someone like that in your household, you may have a measuring tape lying around.

If you don't have a measuring tape, the next best thing is a piece of string and a marker. You can wrap the piece of string around your penis, mark it where it meets the other end, and then measure that with a ruler. Even using a piece of toilet paper and making a little rip in it where it meets the other end of the toilet paper works.

If you don't have a ruler or anything to measure with, that's a little trickier. Here are some common items that you probably have lying around that are pretty much always the same size:

  • US Dollar Bill: 6.14 inches
  • Bank Check: 6 inches
  • 3 x 5 Index Card: 5 inches x 3 inches
  • Cd / DVD Diameter (from center to outer edge): 4.72 inches
  • Playing Card: 3.5 inches
  • Credit Card: 3.37 inches x 2.125 inches (two credit cards stacked would be 4.25 inches)

If you're really stuck, you can always compare the girth of your penis to one of these things to get an idea of how thick your penis is.

How to Measure Penis Girth

This part isn't too complicated. The first step is to get your penis fully erect. I hope you don't need an explanation for how to do that 😉.

Once you're fully erect, you take your measuring device and wrap it around the shaft of your penis at the thickest part. You can't include your balls, and you can't wrap it around the thick part of the head of your penis. You're really just looking for the thickest part of the shaft here.

Congradulations, now you know what the girth of your penis is.

How Does Your Penis Girth Compare to Average?

Now that you know the thickness of your penis, the next thing you probably want to know if the thickness of everyone elses penis. We've got you covered.

We have a page on what the average penis girth is, and we've got another page on what the ideal penis girth is (according to women). Finally, we've also got a handy penis size calculator, where you can plug in your penis girth (and length) to see how exactly you compare to all the other penises out there.