Allow automatic conversion to 1.
The following should be possible:
#1 5km = 5000
#2 23GiB = 28,357,279,178,752
#3 (1+1)km = 2000
The following should be possible:
#1 5km = 5000
#2 23GiB = 28,357,279,178,752
#3 (1+1)km = 2000