| Gurnee to Cividale del Friuli | 4,655.66 mi (7,492.56 km) |
| Gurnee to Civita Castellana | 4,780.21 mi (7,693.00 km) |
| Gurnee to Civitanova Marche | 4,788.44 mi (7,706.25 km) |
| Gurnee to Civitavecchia | 4,764.39 mi (7,667.54 km) |
| Gurnee to Civitella in Val di Chiana | 4,704.45 mi (7,571.07 km) |
| Gurnee to Clusone | 4,531.95 mi (7,293.46 km) |
| Gurnee to Coccaglio | 4,546.22 mi (7,316.44 km) |
| Gurnee to Codigoro | 4,659.58 mi (7,498.88 km) |
| Gurnee to Codogno | 4,552.21 mi (7,326.08 km) |
| Gurnee to Codroipo | 4,644.42 mi (7,474.47 km) |
| Gurnee to Cogoleto | 4,542.16 mi (7,309.90 km) |
| Gurnee to Colle di Val d'Elsa | 4,682.12 mi (7,535.15 km) |
| Gurnee to Colle Salvetti | 4,647.91 mi (7,480.09 km) |
| Gurnee to Collecchio | 4,589.22 mi (7,385.64 km) |
| Gurnee to Colleferro | 4,828.92 mi (7,771.40 km) |
