These tables give some idea of the approximate scale of the solar system, and puts into perspective its distance from some much more distant objects. 

Solar System -


Scale Diameter
in cms
Scale Radius
of Orbit
Sun 300
Mercury 1.00 116 meters
Venus 2.50 216 meters
300 meters
76 cms from Earth
Mars 1.35 455 meters
Asteroid Belt             N/A c. 550 to 1,000 meters
Jupiter 28.50 1.56 km
Saturn 24.00 2.86 km
Uranus 10.16 5.74 km
Neptune 9.86 9.00 km
Kuiper Belt Objects: Pluto
SDOs & DOs
Oort Cloud
0.46 8.85 to 14.70 km
c. 10 to >64 km
c. 600to >16,000 km
Scale: 1:500,000,000
The model below scales the Sun as a globe 300 cms (c. 10 feet) in diameter, with the Earth at 2.7 cms (c. 1 inch) in diameter.  All the other distances are to this same scale.  Orbital radii are based on the semi-major axis except for Pluto, as its orbit is extremely eccentric.  
Object Scale Distance
   Diameter of the Sun A grain of sand, less
than 0.25 mm across
   Earth < 1/400th mm across,
< 2.5 cms from the Sun
Nearest Star (Proxima Centauri) 6.8 km from Earth
Diameter of Milky Way c. 160,000 Km
Andromeda Galaxy c. 4 Million Km from Earth
Lynx Arc Supercluster c. 64 Billion km from Earth
(comoving distance on this scale)
Scale: 1:6,000,000,000,000
This scale is approximately 1.6 km to 1 light-year.  In the model below, I have rescaled the Sun to be the size of a grain of sand; a little under a quarter of a mm across.  The Earth would be about the size of a bacterium!  In the real Universe, the Andromeda Galaxy, for example, is actually about 780 Kpc away.  That's over 15,000,000,000,000,000,000 miles, away; and Andromeda is our nearest large galaxy! 
One last statistic.  If we scaled our entire solar system, out to the Kuiper Belt, to the size of a grain of sand. The Lynx Arc Supercluster would still be nearly 180,000 km away, and the comoving diameter of the observable Universe, to the same scale, would be represented by a sphere about 400,000 km in diameter (in reality, it is about 28 Gpc or 93 Billion Light-Years in diameter)