Kilometer to femtometer converter (km to fm)

Conversion Formula

1 km = 1.0E+18 fm

Step-by-Step Explanation

1. Understand the base relationship:
   1 Kilometer = 1000 meters
   1 fm = 1.0E-15 meters
2. Establish the conversion factor:
   1 km = (1000 m) / (1.0E-15 m/fm) = 1.0E+18 fm
3. Apply the conversion:
   Multiply the value in km by 1.0E+18 to get the equivalent in fm

Example Conversion

Convert 5 km to fm:

5 km × 1.0E+18 = 5.0E+18 fm