| Knowle to Orangevale (California) | 5,174.44 mi (8,327.46 km) |
| Knowle to Orchards (Washington) | 4,809.01 mi (7,739.35 km) |
| Knowle to Orcutt (California) | 5,370.73 mi (8,643.36 km) |
| Knowle to Oregon (Ohio) | 3,708.87 mi (5,968.85 km) |
| Knowle to Oregon (Wisconsin) | 3,876.04 mi (6,237.89 km) |
| Knowle to Oregon City (Oregon) | 4,830.57 mi (7,774.06 km) |
| Knowle to Orem (Utah) | 4,788.53 mi (7,706.40 km) |
| Knowle to Orinda (California) | 5,249.55 mi (8,448.33 km) |
| Knowle to Orland Park (Illinois) | 3,880.57 mi (6,245.18 km) |
| Knowle to Orlando (Florida) | 4,261.18 mi (6,857.70 km) |
| Knowle to Ormond Beach (Florida) | 4,210.04 mi (6,775.41 km) |
| Knowle to Oro Valley (Arizona) | 5,198.06 mi (8,365.47 km) |
| Knowle to Oroville (California) | 5,137.70 mi (8,268.33 km) |
| Knowle to Oshkosh (Wisconsin) | 3,794.33 mi (6,106.39 km) |
| Knowle to Oskaloosa (Iowa) | 4,074.48 mi (6,557.24 km) |
