Help make Alexa smarter on Alexa Answers. Sign in with Amazon


What's the diameter of a human hair?

The thickness of a human hair varies, depending on many factors. The range is from about 40 micrometers to 180 micrometers, with the average being about 70 micrometers. That's about 0.0015 inches to 0.007 inches, with the average being about 0.0028 inches thick.

{{ relativeTimeResolver(1593546129622) }}

Points points 185
Rating 2

Similar Questions
Sign in to view all similar questions

Join Alexa Answers

Help make Alexa smarter and share your knowledge with the world