| Cities | Distance |
|---|---|
| Terni to Orbetello | 73.28 mi (117.93 km) |
| Terni to Oria | 294.82 mi (474.47 km) |
| Terni to Oristano | 279.15 mi (449.25 km) |
| Terni to Orta Nova | 179.22 mi (288.43 km) |
| Terni to Orte | 14.78 mi (23.78 km) |
| Terni to Ortona | 90.83 mi (146.18 km) |
| Terni to Orvieto | 29.08 mi (46.79 km) |
| Terni to Orzinuovi | 237.83 mi (382.76 km) |
| Terni to Osimo | 76.56 mi (123.21 km) |
| Terni to Ospitaletto | 242.94 mi (390.98 km) |
| Terni to Ostuni | 284.65 mi (458.10 km) |
| Terni to Ottaviano | 151.52 mi (243.85 km) |
| Terni to Ovada | 246.03 mi (395.95 km) |
| Terni to Ozieri | 232.39 mi (373.99 km) |
| Terni to Paceco | 316.39 mi (509.18 km) |