| Hamm to Oakley (California) | 5,533.73 mi (8,905.67 km) |
| Hamm to Oakton (Virginia) | 3,990.00 mi (6,421.28 km) |
| Hamm to Oakville (Missouri) | 4,506.25 mi (7,252.11 km) |
| Hamm to Oatfield (Oregon) | 5,108.85 mi (8,221.91 km) |
| Hamm to Ocala (Florida) | 4,663.24 mi (7,504.76 km) |
| Hamm to Ocean Acres (New Jersey) | 3,830.98 mi (6,165.37 km) |
| Hamm to Ocean City (New Jersey) | 3,865.66 mi (6,221.19 km) |
| Hamm to Ocean Pines (Maryland) | 3,928.54 mi (6,322.37 km) |
| Hamm to Ocean Pointe (Hawaii) | 7,320.74 mi (11,781.59 km) |
| Hamm to Ocean Springs (Mississippi) | 4,863.36 mi (7,826.82 km) |
| Hamm to Oceanside (California) | 5,696.37 mi (9,167.42 km) |
| Hamm to Oceanside (New York) | 3,764.80 mi (6,058.86 km) |
| Hamm to Ocoee (Florida) | 4,668.82 mi (7,513.73 km) |
| Hamm to Oconomowoc (Wisconsin) | 4,207.84 mi (6,771.87 km) |
| Hamm to Odenton (Maryland) | 3,957.75 mi (6,369.38 km) |
