| Guymon to Castrovillari | 5,835.77 mi (9,391.77 km) |
| Guymon to Catania | 5,904.54 mi (9,502.45 km) |
| Guymon to Catanzaro | 5,895.48 mi (9,487.85 km) |
| Guymon to Cattolica | 5,509.49 mi (8,866.67 km) |
| Guymon to Cava de' Tirreni | 5,736.49 mi (9,231.98 km) |
| Guymon to Cavallino | 5,886.02 mi (9,472.63 km) |
| Guymon to Cavarzere | 5,431.74 mi (8,741.54 km) |
| Guymon to Cave | 5,616.76 mi (9,039.30 km) |
| Guymon to Cavriago | 5,394.36 mi (8,681.38 km) |
| Guymon to Cavriglia | 5,483.52 mi (8,824.88 km) |
| Guymon to Cazzago San Martino | 5,336.08 mi (8,587.59 km) |
| Guymon to Ceccano | 5,643.64 mi (9,082.56 km) |
| Guymon to Cecina | 5,456.00 mi (8,780.58 km) |
| Guymon to Cefalu | 5,836.69 mi (9,393.24 km) |
| Guymon to Ceglie Messapico | 5,843.80 mi (9,404.68 km) |
