| Houten to Oerlinghausen | 148.94 mi (239.70 km) |
| Houten to Oestrich-Winkel | 186.80 mi (300.62 km) |
| Houten to Offenburg | 275.03 mi (442.61 km) |
| Houten to Oftersheim | 237.05 mi (381.50 km) |
| Houten to Ohrdruf | 253.74 mi (408.36 km) |
| Houten to Ohringen | 272.69 mi (438.86 km) |
| Houten to Olbernhau | 364.62 mi (586.80 km) |
| Houten to Olching | 379.74 mi (611.13 km) |
| Houten to Oldenburg | 149.14 mi (240.02 km) |
| Houten to Oldenburg in Holstein | 283.76 mi (456.67 km) |
| Houten to Olfen | 97.05 mi (156.18 km) |
| Houten to Olpe | 134.43 mi (216.34 km) |
| Houten to Olsberg | 149.68 mi (240.88 km) |
| Houten to Oranienburg | 343.70 mi (553.14 km) |
| Houten to Ortenberg | 204.37 mi (328.89 km) |
