| Sumter to Castelfidardo | 4,833.67 mi (7,779.04 km) |
| Sumter to Castelfiorentino | 4,714.72 mi (7,587.62 km) |
| Sumter to Castelfranco di Sopra | 4,740.38 mi (7,628.90 km) |
| Sumter to Castelfranco di Sotto | 4,701.94 mi (7,567.04 km) |
| Sumter to Castelfranco Emilia | 4,687.72 mi (7,544.16 km) |
| Sumter to Castelfranco Veneto | 4,693.16 mi (7,552.91 km) |
| Sumter to Castellabate | 5,003.95 mi (8,053.08 km) |
| Sumter to Castellammare del Golfo | 4,984.71 mi (8,022.11 km) |
| Sumter to Castellammare di Stabia | 4,968.13 mi (7,995.44 km) |
| Sumter to Castellamonte | 4,516.97 mi (7,269.36 km) |
| Sumter to Castellana Grotte | 5,082.93 mi (8,180.18 km) |
| Sumter to Castellaneta | 5,081.33 mi (8,177.61 km) |
| Sumter to Castellanza | 4,562.60 mi (7,342.79 km) |
| Sumter to Castellarano | 4,676.76 mi (7,526.52 km) |
| Sumter to Castelleone | 4,609.79 mi (7,418.74 km) |
