| Olbia to Marshall (Minnesota) | 4,943.96 mi (7,956.53 km) |
| Olbia to Marshall (Missouri) | 5,077.22 mi (8,170.99 km) |
| Olbia to Marshall (Texas) | 5,422.27 mi (8,726.31 km) |
| Olbia to Marshalltown (Iowa) | 4,937.45 mi (7,946.05 km) |
| Olbia to Marshfield (Wisconsin) | 4,717.63 mi (7,592.28 km) |
| Olbia to Martha Lake (Washington) | 5,630.36 mi (9,061.20 km) |
| Olbia to Martin (Tennessee) | 5,013.48 mi (8,068.42 km) |
| Olbia to Martinez (California) | 6,187.76 mi (9,958.24 km) |
| Olbia to Martinez (Georgia) | 4,827.67 mi (7,769.38 km) |
| Olbia to Martinsburg (West Virginia) | 4,406.35 mi (7,091.33 km) |
| Olbia to Martinsville (Indiana) | 4,779.49 mi (7,691.84 km) |
| Olbia to Martinsville (New Jersey) | 4,211.65 mi (6,778.00 km) |
| Olbia to Martinsville (Virginia) | 4,597.97 mi (7,399.72 km) |
| Olbia to Maryland City (Maryland) | 4,366.72 mi (7,027.55 km) |
| Olbia to Maryland Heights (Missouri) | 4,980.81 mi (8,015.85 km) |
