| Zagarolo to Rockville (Maryland) | 4,499.86 mi (7,241.82 km) |
| Zagarolo to Rockville Centre (New York) | 4,284.13 mi (6,894.64 km) |
| Zagarolo to Rockwall (Texas) | 5,598.23 mi (9,009.47 km) |
| Zagarolo to Rocky Mount (North Carolina) | 4,653.74 mi (7,489.48 km) |
| Zagarolo to Rocky Point (New York) | 4,243.08 mi (6,828.58 km) |
| Zagarolo to Rocky River (Ohio) | 4,606.23 mi (7,413.01 km) |
| Zagarolo to Roessleville (New York) | 4,216.20 mi (6,785.32 km) |
| Zagarolo to Rogers (Arkansas) | 5,341.83 mi (8,596.84 km) |
| Zagarolo to Rogers (Minnesota) | 4,908.93 mi (7,900.16 km) |
| Zagarolo to Rohnert Park (California) | 6,231.01 mi (10,027.84 km) |
| Zagarolo to Rolla (Missouri) | 5,168.63 mi (8,318.10 km) |
| Zagarolo to Rolling Meadows (Illinois) | 4,833.47 mi (7,778.73 km) |
| Zagarolo to Roma (Texas) | 6,026.35 mi (9,698.47 km) |
| Zagarolo to Rome (Georgia) | 5,055.19 mi (8,135.55 km) |
| Zagarolo to Rome (New York) | 4,269.44 mi (6,871.01 km) |
