| Ottumwa to Cabestany | 4,619.07 mi (7,433.67 km) |
| Ottumwa to Cabries | 4,688.30 mi (7,545.10 km) |
| Ottumwa to Cachan | 4,359.07 mi (7,015.24 km) |
| Ottumwa to Caen | 4,240.72 mi (6,824.79 km) |
| Ottumwa to Cagnes-sur-Mer | 4,750.21 mi (7,644.73 km) |
| Ottumwa to Cahors | 4,487.93 mi (7,222.62 km) |
| Ottumwa to Calais | 4,262.35 mi (6,859.59 km) |
| Ottumwa to Caluire-et-Cuire | 4,572.22 mi (7,358.27 km) |
| Ottumwa to Cambrai | 4,341.90 mi (6,987.61 km) |
| Ottumwa to Canet-en-Roussillon | 4,620.74 mi (7,436.37 km) |
| Ottumwa to Cannes | 4,749.48 mi (7,643.55 km) |
| Ottumwa to Canteleu | 4,285.24 mi (6,896.43 km) |
| Ottumwa to Capbreton | 4,399.10 mi (7,079.67 km) |
| Ottumwa to Carcassonne | 4,573.53 mi (7,360.39 km) |
| Ottumwa to Carmaux | 4,532.76 mi (7,294.77 km) |
