# Question: How Fast Is A Blink Of An Eye In Mph?

On average the human blink lasts only a tenth of a second which is 100 milliseconds.

Wow, that’s fast.

Sometimes, it can even last up to 400 milliseconds..

No, your eyelid does not travel faster than the speed of light. You do not notice a blink because your brain long ago realised the information is unimportant. … If light can go faster than 186000 miles per second, how much faster can it travel than that?

## What is the fastest speed the human eye can see in mph?

about 550 mphOrdinarily (with normal senses), the human eye can’t see something that is travelling faster than about 550 mph (2,420”/turn), at least when it’s close by, so someone or something moving that fast often won’t be recognized in time to warn somebody.

Generally, between each blink is an interval of 2–10 seconds; actual rates vary by individual averaging around 10 blinks per minute in a laboratory setting.

Not all humans are able to wink voluntarily, and some can only wink one (usually the non-dominant) eye. Others are far better at winking one eye and find it awkward to wink the other. Some people, especially children and adolescents, show a habit of winking involuntarily under stress, often without their own knowledge.

Scientists have shown that the average person blinks 15-20 times per minute. That’s up to 1,200 times per hour and a whopping 28,800 times in a day—much more often than we need to keep our eyeballs lubricated. In fact, we spend about 10 percent of our waking hours with our eyes closed.