You are here: Home Environment Water All the Earth’s Water All the Earth’s Water How much water is available on Earth? A surprisingly small amount. This visual from the Woods Hole Oceanographic Institute really brings that home. by Heather Carr May 17, 2012, 2:00 am How much water is available on Earth? A surprisingly small amount. This visual from the Woods Hole Oceanographic Institute really brings that home. If all the water on the planet were gathered into a ball, the radius would be only 700 km (420 miles). The amount of freshwater available is even less than that. Illustration by Jack Cook, Woods Hole Oceanographic Institution, Howard Perlman, USGS See more Previous article Tar Creek Superfund Site Next article Story of an Egg: Farming, Marketing, and the Meaning of Words Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Upload a photo / attachment to this comment (PNG, JPG, GIF - 6 MB Max File Size): (Allowed file types: jpg, gif, png, maximum file size: 6MB.