- published: 26 May 2015
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A length of 100 kilometers (about 62 miles), as a rough amount, is relatively common in measurements on Earth and for some astronomical objects. It is the altitude at which the FAI defines spaceflight to begin. To help compare orders of magnitude, this page lists lengths between 100 and 1,000 kilometres (105 and 106metres).
A distance of 100 kilometres is equal to about 62 miles (or 62.13711922 miles).