| Manassas to Robertsville (New Jersey) | 202.41 mi (325.75 km) |
| Manassas to Robinson (Texas) | 1,215.83 mi (1,956.70 km) |
| Manassas to Robstown (Texas) | 1,385.18 mi (2,229.24 km) |
| Manassas to Rochester (Michigan) | 401.29 mi (645.81 km) |
| Manassas to Rochester (Minnesota) | 856.61 mi (1,378.58 km) |
| Manassas to Rochester (New Hampshire) | 462.18 mi (743.81 km) |
| Manassas to Rochester (New York) | 305.48 mi (491.62 km) |
| Manassas to Rochester Hills (Michigan) | 401.70 mi (646.47 km) |
| Manassas to Rock Hill (South Carolina) | 327.79 mi (527.52 km) |
| Manassas to Rock Island (Illinois) | 716.49 mi (1,153.08 km) |
| Manassas to Rock Springs (Wyoming) | 1,677.54 mi (2,699.74 km) |
| Manassas to Rockford (Illinois) | 654.29 mi (1,052.98 km) |
| Manassas to Rockledge (Florida) | 744.27 mi (1,197.79 km) |
| Manassas to Rocklin (California) | 2,334.13 mi (3,756.42 km) |
| Manassas to Rockport (Texas) | 1,346.52 mi (2,167.02 km) |
