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How big is the universe in km?

Answer 1

Hazel Asher

The diameter of the observable universe is about #4.40# x #10^23# km.

The observable universe has a diameter of approximately 46.5 billion light years, or 4.40 x 10^23 km.

Observable Universe as a source

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Answer 2

Hailey Alvarez

It's quite big

The universe has a mass of approximately 46 billion light years, or billions of light years. One light year is equivalent to 9.461e+12, so that number is even uncountable. Similarly, 46 billion light years is equivalent to 4.35193601739e+23, so that number is sort of countable. I hope you got the idea.

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Answer 3

Levi Alexander

The observable universe is approximately 93 billion light-years in diameter, which is roughly 8.8×10^26 kilometers.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.