| Rocky River to Orangeburg (South Carolina) | 553.81 mi (891.28 km) |
| Rocky River to Orangevale (California) | 2,072.18 mi (3,334.85 km) |
| Rocky River to Orchards (Washington) | 2,034.50 mi (3,274.21 km) |
| Rocky River to Orcutt (California) | 2,125.76 mi (3,421.09 km) |
| Rocky River to Oregon (Ohio) | 82.63 mi (132.98 km) |
| Rocky River to Oregon (Wisconsin) | 398.51 mi (641.33 km) |
| Rocky River to Oregon City (Oregon) | 2,040.34 mi (3,283.60 km) |
| Rocky River to Orem (Utah) | 1,553.47 mi (2,500.08 km) |
| Rocky River to Orinda (California) | 2,139.34 mi (3,442.93 km) |
| Rocky River to Orland Park (Illinois) | 310.87 mi (500.29 km) |
| Rocky River to Orlando (Florida) | 898.19 mi (1,445.50 km) |
| Rocky River to Ormond Beach (Florida) | 842.04 mi (1,355.13 km) |
| Rocky River to Oro Valley (Arizona) | 1,715.35 mi (2,760.59 km) |
| Rocky River to Oroville (California) | 2,072.92 mi (3,336.04 km) |
| Rocky River to Oshkosh (Wisconsin) | 383.23 mi (616.76 km) |
