| Harrow to Rockville (Maryland) | 3,650.93 mi (5,875.60 km) |
| Harrow to Rockville Centre (New York) | 3,437.69 mi (5,532.43 km) |
| Harrow to Rockwall (Texas) | 4,716.15 mi (7,589.91 km) |
| Harrow to Rocky Mount (North Carolina) | 3,820.27 mi (6,148.13 km) |
| Harrow to Rocky Point (New York) | 3,397.30 mi (5,467.43 km) |
| Harrow to Rocky River (Ohio) | 3,731.76 mi (6,005.68 km) |
| Harrow to Roessleville (New York) | 3,357.45 mi (5,403.30 km) |
| Harrow to Rogers (Arkansas) | 4,455.26 mi (7,170.04 km) |
| Harrow to Rogers (Minnesota) | 4,001.71 mi (6,440.13 km) |
| Harrow to Rohnert Park (California) | 5,318.51 mi (8,559.32 km) |
| Harrow to Rolla (Missouri) | 4,282.75 mi (6,892.42 km) |
| Harrow to Rolling Meadows (Illinois) | 3,942.69 mi (6,345.14 km) |
| Harrow to Roma (Texas) | 5,157.49 mi (8,300.18 km) |
| Harrow to Rome (Georgia) | 4,203.25 mi (6,764.48 km) |
| Harrow to Rome (New York) | 3,403.19 mi (5,476.90 km) |
