unit_conversion_program.py

# unit_conversion_program.py

def micrometers_to_nanometers(value):
    return value * 1000

def angstroms_to_nanometers(value):
    return value * 0.1

def light_years_to_kilometers(value):
    return value * 9.461e12

def astronomical_units_to_kilometers(value):
    return value * 149597870.7

def parsecs_to_light_years(value):
    return value * 3.26156

def chains_to_meters(value):
    return value * 20.1168

def furlongs_to_meters(value):
    return value * 201.168

def tons_us_to_kilograms(value):
    return value * 907.18474

# Add more conversion functions as needed following the pattern above.