| Grass Valley to Celano | 6,138.89 mi (9,879.58 km) |
| Grass Valley to Cento | 5,923.50 mi (9,532.94 km) |
| Grass Valley to Cepagatti | 6,137.01 mi (9,876.56 km) |
| Grass Valley to Ceprano | 6,168.64 mi (9,927.46 km) |
| Grass Valley to Cercola | 6,231.86 mi (10,029.21 km) |
| Grass Valley to Cerea | 5,895.24 mi (9,487.46 km) |
| Grass Valley to Cerese | 5,890.56 mi (9,479.94 km) |
| Grass Valley to Cerignola | 6,251.85 mi (10,061.38 km) |
| Grass Valley to Cermenate | 5,806.70 mi (9,344.98 km) |
| Grass Valley to Cernusco sul Naviglio | 5,824.06 mi (9,372.93 km) |
| Grass Valley to Cerreto Guidi | 5,966.70 mi (9,602.47 km) |
| Grass Valley to Cerro Maggiore | 5,808.41 mi (9,347.73 km) |
| Grass Valley to Certaldo | 5,983.60 mi (9,629.68 km) |
| Grass Valley to Cerveteri | 6,102.07 mi (9,820.33 km) |
| Grass Valley to Cervia | 5,980.54 mi (9,624.75 km) |
