The size comparison library / diameter
Moon vs Earth Size
Using the game’s measurements, the Moon has approximately 0.2727× the diameter of Earth.
The bars compare the named dimensions, not area, volume or weight.
The relationship
0.2727× the reference size.
The Moon is a little over one quarter of Earth’s diameter.
The Moon looks large in a close-up and small in a wide sky photograph. Using the same scale for both diameters removes the effects of framing and distance.
Try this comparison yourself →What the measurements include
A diameter ratio is one-dimensional. The Moon’s surface area and volume are smaller fractions of Earth’s, so this ratio should not be read as an area, mass or volume comparison.
Why photos can fool your sense of scale
Distance from the camera, lens choice and cropping change how large an object appears. Check the named measurement before comparing images. The bars above put both measurements on the same numerical scale, so a longer bar corresponds to the same multiple of the stated dimension.