| Riihimaki to Caguas (Puerto Rico) | 5,150.89 mi (8,289.56 km) |
| Riihimaki to Cahokia (Illinois) | 4,664.13 mi (7,506.19 km) |
| Riihimaki to Calabasas (California) | 5,564.02 mi (8,954.42 km) |
| Riihimaki to Caldwell (Idaho) | 4,905.84 mi (7,895.18 km) |
| Riihimaki to Caledonia (Wisconsin) | 4,350.18 mi (7,000.93 km) |
| Riihimaki to Calera (Alabama) | 4,901.36 mi (7,887.97 km) |
| Riihimaki to Calexico (California) | 5,603.57 mi (9,018.07 km) |
| Riihimaki to Calhoun (Georgia) | 4,768.45 mi (7,674.08 km) |
| Riihimaki to California (Maryland) | 4,300.67 mi (6,921.25 km) |
| Riihimaki to California City (California) | 5,483.22 mi (8,824.39 km) |
| Riihimaki to Callaway (Florida) | 5,049.05 mi (8,125.66 km) |
| Riihimaki to Calumet City (Illinois) | 4,412.43 mi (7,101.12 km) |
| Riihimaki to Calverton (Maryland) | 4,269.78 mi (6,871.55 km) |
| Riihimaki to Camano (Washington) | 4,691.99 mi (7,551.03 km) |
| Riihimaki to Camarillo (California) | 5,564.48 mi (8,955.16 km) |
