| Poiana Mare to Oakley (California) | 6,363.12 mi (10,240.44 km) |
| Poiana Mare to Oakton (Virginia) | 4,867.98 mi (7,834.26 km) |
| Poiana Mare to Oakville (Missouri) | 5,391.35 mi (8,676.55 km) |
| Poiana Mare to Oatfield (Oregon) | 5,914.82 mi (9,518.98 km) |
| Poiana Mare to Ocala (Florida) | 5,529.93 mi (8,899.57 km) |
| Poiana Mare to Ocean Acres (New Jersey) | 4,706.83 mi (7,574.91 km) |
| Poiana Mare to Ocean City (New Jersey) | 4,741.00 mi (7,629.91 km) |
| Poiana Mare to Ocean Pines (Maryland) | 4,802.87 mi (7,729.47 km) |
| Poiana Mare to Ocean Pointe (Hawaii) | 7,928.06 mi (12,758.98 km) |
| Poiana Mare to Ocean Springs (Mississippi) | 5,742.87 mi (9,242.25 km) |
| Poiana Mare to Oceanside (California) | 6,551.16 mi (10,543.07 km) |
| Poiana Mare to Oceanside (New York) | 4,641.54 mi (7,469.83 km) |
| Poiana Mare to Ocoee (Florida) | 5,532.79 mi (8,904.16 km) |
| Poiana Mare to Oconomowoc (Wisconsin) | 5,092.11 mi (8,194.96 km) |
| Poiana Mare to Odenton (Maryland) | 4,835.32 mi (7,781.70 km) |
