| Simi Valley to Celano | 6,358.75 mi (10,233.42 km) |
| Simi Valley to Cento | 6,144.58 mi (9,888.74 km) |
| Simi Valley to Cepagatti | 6,359.26 mi (10,234.24 km) |
| Simi Valley to Ceprano | 6,386.78 mi (10,278.53 km) |
| Simi Valley to Cercola | 6,450.60 mi (10,381.24 km) |
| Simi Valley to Cerea | 6,117.56 mi (9,845.26 km) |
| Simi Valley to Cerese | 6,111.10 mi (9,834.86 km) |
| Simi Valley to Cerignola | 6,476.62 mi (10,423.12 km) |
| Simi Valley to Cermenate | 6,024.57 mi (9,695.61 km) |
| Simi Valley to Cernusco sul Naviglio | 6,042.05 mi (9,723.74 km) |
| Simi Valley to Cerreto Guidi | 6,183.62 mi (9,951.58 km) |
| Simi Valley to Cerro Maggiore | 6,025.58 mi (9,697.24 km) |
| Simi Valley to Certaldo | 6,200.31 mi (9,978.44 km) |
| Simi Valley to Cerveteri | 6,317.19 mi (10,166.53 km) |
| Simi Valley to Cervia | 6,203.29 mi (9,983.23 km) |
