This image visualises the sizes of the 8 planets in our Solar System. They are exactly to scale regarding their size, but not regarding their distance. If you would like to see an image of the planets with their right distances you need a bigger screen: using the full resolution image the size of the Earth on a standard monitor is 1.2 cm. Then the correct distance from Mercury to Neptune on the monitor would be approximately 4.2 km (2.6 miles). You can also see an image of the inner Solar System visualising the correct distances of the planets from the Sun.
The planets from left to right are: Mercury - Venus - Earth - Mars - Jupiter - Saturn - Uranus - Neptune.