| Richardson to Castelfidardo | 5,567.96 mi (8,960.77 km) |
| Richardson to Castelfiorentino | 5,458.25 mi (8,784.21 km) |
| Richardson to Castelfranco di Sopra | 5,481.35 mi (8,821.38 km) |
| Richardson to Castelfranco di Sotto | 5,445.42 mi (8,763.56 km) |
| Richardson to Castelfranco Emilia | 5,421.81 mi (8,725.57 km) |
| Richardson to Castelfranco Veneto | 5,413.74 mi (8,712.57 km) |
| Richardson to Castellabate | 5,759.79 mi (9,269.48 km) |
| Richardson to Castellammare del Golfo | 5,767.39 mi (9,281.72 km) |
| Richardson to Castellammare di Stabia | 5,722.52 mi (9,209.50 km) |
| Richardson to Castellamonte | 5,256.37 mi (8,459.32 km) |
| Richardson to Castellana Grotte | 5,823.94 mi (9,372.73 km) |
| Richardson to Castellaneta | 5,825.50 mi (9,375.24 km) |
| Richardson to Castellanza | 5,295.39 mi (8,522.11 km) |
| Richardson to Castellarano | 5,412.19 mi (8,710.07 km) |
| Richardson to Castelleone | 5,342.36 mi (8,597.71 km) |
