| Clarkston to Opole | 4,931.60 mi (7,936.64 km) |
| Clarkston to Orzesze | 4,980.89 mi (8,015.96 km) |
| Clarkston to Osowa | 4,818.64 mi (7,754.86 km) |
| Clarkston to Ostroda | 4,896.49 mi (7,880.14 km) |
| Clarkston to Ostroleka | 4,975.60 mi (8,007.45 km) |
| Clarkston to Ostrow Mazowiecka | 4,997.27 mi (8,042.33 km) |
| Clarkston to Ostrow Wielkopolski | 4,892.45 mi (7,873.64 km) |
| Clarkston to Ostrowiec Swietokrzyski | 5,050.00 mi (8,127.19 km) |
| Clarkston to Ostrzeszow | 4,904.99 mi (7,893.81 km) |
| Clarkston to Oswiecim | 5,002.71 mi (8,051.09 km) |
| Clarkston to Otwock | 5,000.60 mi (8,047.69 km) |
| Clarkston to Ozarow Mazowiecki | 4,980.22 mi (8,014.89 km) |
| Clarkston to Ozimek | 4,941.86 mi (7,953.16 km) |
| Clarkston to Ozorkow | 4,934.80 mi (7,941.79 km) |
| Clarkston to Pabianice | 4,949.91 mi (7,966.10 km) |
