Enter a quantity of units to begin
100m sprint:
¼ Mile Drag Race:
1 Kilometre:
Cross the English Channel:
Run a Marathon:
The Width of Australia:
Sydney to Heathrow:
Once Around the Equator:
1 Light Second:
Earth to the Moon (1LD):
Earth to the Sun (1AU):
Sun to Mars:
Sun to Jupiter:
Sun to Pluto:
1 Light Year:
1 Parsec:
To Proxima Centauri:
To Large Magellanic Cloud:
To Andromeda Galaxy:
*Sun to planet distances are averages.