| Pirkkala to Oestrich-Winkel | 993.76 mi (1,599.30 km) |
| Pirkkala to Offenburg | 1,087.15 mi (1,749.59 km) |
| Pirkkala to Oftersheim | 1,018.17 mi (1,638.59 km) |
| Pirkkala to Ohrdruf | 883.92 mi (1,422.53 km) |
| Pirkkala to Ohringen | 1,008.92 mi (1,623.70 km) |
| Pirkkala to Olbernhau | 843.38 mi (1,357.28 km) |
| Pirkkala to Olching | 1,035.81 mi (1,666.97 km) |
| Pirkkala to Oldenburg | 810.14 mi (1,303.79 km) |
| Pirkkala to Oldenburg in Holstein | 679.70 mi (1,093.88 km) |
| Pirkkala to Olfen | 909.77 mi (1,464.14 km) |
| Pirkkala to Olpe | 938.40 mi (1,510.21 km) |
| Pirkkala to Olsberg | 903.64 mi (1,454.27 km) |
| Pirkkala to Oranienburg | 715.75 mi (1,151.88 km) |
| Pirkkala to Ortenberg | 948.70 mi (1,526.78 km) |
| Pirkkala to Oschatz | 807.71 mi (1,299.89 km) |
