| Clarksburg to Orthez | 3,834.49 mi (6,171.01 km) |
| Clarksburg to Orvault | 3,696.34 mi (5,948.68 km) |
| Clarksburg to Osny | 3,809.29 mi (6,130.46 km) |
| Clarksburg to Ostwald | 4,058.83 mi (6,532.05 km) |
| Clarksburg to Ouistreham | 3,706.03 mi (5,964.27 km) |
| Clarksburg to Oullins | 4,019.73 mi (6,469.13 km) |
| Clarksburg to Outreau | 3,748.71 mi (6,032.97 km) |
| Clarksburg to Oyonnax | 4,040.34 mi (6,502.29 km) |
| Clarksburg to Ozoir-la-Ferriere | 3,842.58 mi (6,184.04 km) |
| Clarksburg to Pace | 3,668.41 mi (5,903.73 km) |
| Clarksburg to Palaiseau | 3,825.95 mi (6,157.27 km) |
| Clarksburg to Pamiers | 3,954.05 mi (6,363.42 km) |
| Clarksburg to Panazol | 3,862.77 mi (6,216.53 km) |
| Clarksburg to Pantin | 3,827.76 mi (6,160.19 km) |
| Clarksburg to Paray-le-Monial | 3,968.29 mi (6,386.34 km) |
