Scale Of The Universe: Visualize & compare object sizes in our universe

How small is the smallest object? How large is the largest object? There is a good chance that you do not know. To get an idea of how various objects in the universe size up against one another, pay a visit to the interactive and fun web tool entitled Scale of the Universe.

compare object sizes

Scale of the Universe is a free and very informative web tool. The site lets you view the sizes of various objects – from the tiniest things such as quantum foam to the largest such as the estimated size of our universe – while comparing them at the same time. This is achieved by arranging all things circularly. Each circular arrangement represents objects of the same size, with outer circles representing greater sizes.

You can enter the inner or outer circles by moving the slider provided at the bottom. Shapes drawn under the slider bar indicate which size you are close to i.e. if the slider is on top of the shape of a man, then you are viewing things not too bigger or smaller than humans. Of course to get a clearer idea of the sizes, you can always look at the main diagram and read the actual sizes provided with each object.


  • A user friendly web service.
  • Lets you view objects of different sizes in our universe.
  • Helps you compare objects by arranging them circularly.
  • You can move in and out of circles using a slider.
  • A greatly informative and fun tool to use.

Check out Scale of the Universe @

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