| Fort Collins to Oststeinbek | 4,885.39 mi (7,862.28 km) |
| Fort Collins to Ottendorf-Okrilla | 5,110.04 mi (8,223.81 km) |
| Fort Collins to Ottersberg | 4,875.63 mi (7,846.56 km) |
| Fort Collins to Ottobrunn | 5,196.85 mi (8,363.52 km) |
| Fort Collins to Ottweiler | 4,986.79 mi (8,025.47 km) |
| Fort Collins to Overath | 4,917.66 mi (7,914.20 km) |
| Fort Collins to Oyten | 4,873.41 mi (7,843.00 km) |
| Fort Collins to Paderborn | 4,928.19 mi (7,931.15 km) |
| Fort Collins to Papenburg | 4,823.31 mi (7,762.37 km) |
| Fort Collins to Parchim | 4,940.93 mi (7,951.67 km) |
| Fort Collins to Pasewalk | 4,999.77 mi (8,046.35 km) |
| Fort Collins to Passau | 5,229.09 mi (8,415.41 km) |
| Fort Collins to Pattensen | 4,933.79 mi (7,940.16 km) |
| Fort Collins to Pegnitz | 5,110.08 mi (8,223.88 km) |
| Fort Collins to Peine | 4,945.56 mi (7,959.11 km) |
