| Targu-Mures to Octeville | 1,221.64 mi (1,966.04 km) |
| Targu-Mures to Oignies | 1,019.81 mi (1,641.22 km) |
| Targu-Mures to Oissel | 1,098.71 mi (1,768.20 km) |
| Targu-Mures to Olivet | 1,063.81 mi (1,712.03 km) |
| Targu-Mures to Ollioules | 944.12 mi (1,519.41 km) |
| Targu-Mures to Olonne-sur-Mer | 1,245.73 mi (2,004.81 km) |
| Targu-Mures to Oloron-Sainte-Marie | 1,248.45 mi (2,009.19 km) |
| Targu-Mures to Onet Village | 1,071.79 mi (1,724.88 km) |
| Targu-Mures to Onnaing | 992.70 mi (1,597.60 km) |
| Targu-Mures to Orange | 970.92 mi (1,562.55 km) |
| Targu-Mures to Orchies | 1,008.92 mi (1,623.70 km) |
| Targu-Mures to Orleans | 1,063.26 mi (1,711.15 km) |
| Targu-Mures to Orly | 1,039.33 mi (1,672.64 km) |
| Targu-Mures to Ormesson-sur-Marne | 1,032.71 mi (1,661.99 km) |
| Targu-Mures to Orsay | 1,048.69 mi (1,687.71 km) |
