| Norristown to Castelfidardo | 4,352.43 mi (7,004.56 km) |
| Norristown to Castelfiorentino | 4,236.07 mi (6,817.29 km) |
| Norristown to Castelfranco di Sopra | 4,260.97 mi (6,857.37 km) |
| Norristown to Castelfranco di Sotto | 4,223.24 mi (6,796.64 km) |
| Norristown to Castelfranco Emilia | 4,206.05 mi (6,768.99 km) |
| Norristown to Castelfranco Veneto | 4,207.62 mi (6,771.51 km) |
| Norristown to Castellabate | 4,530.16 mi (7,290.59 km) |
| Norristown to Castellammare del Golfo | 4,521.29 mi (7,276.31 km) |
| Norristown to Castellammare di Stabia | 4,493.75 mi (7,231.99 km) |
| Norristown to Castellamonte | 4,036.49 mi (6,496.10 km) |
| Norristown to Castellana Grotte | 4,604.38 mi (7,410.04 km) |
| Norristown to Castellaneta | 4,603.79 mi (7,409.09 km) |
| Norristown to Castellanza | 4,080.21 mi (6,566.47 km) |
| Norristown to Castellarano | 4,195.47 mi (6,751.95 km) |
| Norristown to Castelleone | 4,127.46 mi (6,642.51 km) |
