About the Units
exameter (Em)
A very large length unit equal to 10^18 meters.
mile (U.S. survey) (mi (U.S. survey))
A slightly different mile unit used in land surveying.
Common Conversions
- 1 Em = 621370000000000.0 mi (U.S. survey)
- 1.609347e-15 Em = 1 mi (U.S. survey)