There are 546.8 fathoms in a kilometer (546.8 ftm in 1 km). To convert from kilometers to fathoms, multiply the kilometer value by 546.8 and to convert from fathoms to kilometers, divide the fathom value by 546.8.
1 Kilometer = 546.806649 Fathoms
Kilometer is a metric length unit and equals to 1000 meters. It is usually used to measure the distance between two geographical locations. The abbreviation is "km".
Fathom is an imperial, US Customary length unit and usually used to measure the depth of water. The abbreviation is "ftm".