| Ottumwa to Butzbach | 4,530.33 mi (7,290.86 km) |
| Ottumwa to Buxtehude | 4,444.93 mi (7,153.43 km) |
| Ottumwa to Cadolzburg | 4,649.67 mi (7,482.93 km) |
| Ottumwa to Calbe | 4,579.14 mi (7,369.41 km) |
| Ottumwa to Calw | 4,602.62 mi (7,407.21 km) |
| Ottumwa to Castrop-Rauxel | 4,438.30 mi (7,142.75 km) |
| Ottumwa to Celle | 4,491.89 mi (7,229.00 km) |
| Ottumwa to Cham | 4,722.98 mi (7,600.90 km) |
| Ottumwa to Chemnitz | 4,663.19 mi (7,504.67 km) |
| Ottumwa to Clausthal-Zellerfeld | 4,533.80 mi (7,296.44 km) |
| Ottumwa to Cloppenburg | 4,413.32 mi (7,102.56 km) |
| Ottumwa to Coburg | 4,619.15 mi (7,433.80 km) |
| Ottumwa to Coesfeld | 4,417.45 mi (7,109.20 km) |
| Ottumwa to Cologne | 4,449.23 mi (7,160.34 km) |
| Ottumwa to Coswig | 4,673.16 mi (7,520.72 km) |
