| Tomball to Collegno | 5,358.05 mi (8,622.95 km) |
| Tomball to Cologno al Serio | 5,428.62 mi (8,736.52 km) |
| Tomball to Cologno Monzese | 5,413.20 mi (8,711.70 km) |
| Tomball to Colorno | 5,480.57 mi (8,820.12 km) |
| Tomball to Comacchio | 5,563.47 mi (8,953.54 km) |
| Tomball to Comiso | 5,971.00 mi (9,609.39 km) |
| Tomball to Como | 5,395.16 mi (8,682.67 km) |
| Tomball to Concordia Sagittaria | 5,549.83 mi (8,931.59 km) |
| Tomball to Concorezzo | 5,413.38 mi (8,711.99 km) |
| Tomball to Conegliano | 5,523.06 mi (8,888.51 km) |
| Tomball to Conselice | 5,556.02 mi (8,941.56 km) |
| Tomball to Conselve | 5,530.33 mi (8,900.21 km) |
| Tomball to Conversano | 5,916.21 mi (9,521.22 km) |
| Tomball to Copertino | 5,984.43 mi (9,631.01 km) |
| Tomball to Copparo | 5,541.54 mi (8,918.25 km) |
