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By Dr Tushar Chauhan September 28, 2022

How long is Human DNA?

A cell’s DNA is supercoiled on chromosomes, however, DNA is longer than we think. Let’s see how long our DNA is.

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As per the NIH-NIGMS, a single human cell contains a 5.8 to 6 feet long DNA strand. So it lengths up to ~2m.

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The length of male and female human DNA of a single cell in centimeter is 205cm and 208. 23cm, respectively (Article from BMC).

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If we consider 100 trillion cells in our body, the total length of all human DNA is so large that we can do a round trip from Earth to Sun many times.

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The total length of all human DNA is 107. 826 billion Km (67 Billion miles). We can make a 1,50,000 round trip from Earth to the Moon.

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Interestingly, the length of all body DNA is 2 or more times the diameter of the solar system.

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With a total DNA, we can wrap our earth millions of times. Isn’t it amazing!

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Even, we can stretch all of our DNA to our nearest galaxy which is 2.5 million years ago, two times.

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A cell’s mechanism called supercoiling helps DNA to interact with protein and arrange on chromosomes.

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