| Mercerville to Robertsville (New Jersey) | 22.15 mi (35.65 km) |
| Mercerville to Robinson (Texas) | 1,389.82 mi (2,236.69 km) |
| Mercerville to Robstown (Texas) | 1,564.35 mi (2,517.59 km) |
| Mercerville to Rochester (Michigan) | 467.83 mi (752.90 km) |
| Mercerville to Rochester (Minnesota) | 945.98 mi (1,522.41 km) |
| Mercerville to Rochester (New Hampshire) | 285.25 mi (459.06 km) |
| Mercerville to Rochester (New York) | 252.55 mi (406.44 km) |
| Mercerville to Rochester Hills (Michigan) | 469.11 mi (754.96 km) |
| Mercerville to Rock Hill (South Carolina) | 503.72 mi (810.67 km) |
| Mercerville to Rock Island (Illinois) | 833.66 mi (1,341.65 km) |
| Mercerville to Rock Springs (Wyoming) | 1,793.24 mi (2,885.95 km) |
| Mercerville to Rockford (Illinois) | 758.64 mi (1,220.91 km) |
| Mercerville to Rockledge (Florida) | 892.10 mi (1,435.69 km) |
| Mercerville to Rocklin (California) | 2,454.50 mi (3,950.14 km) |
| Mercerville to Rockport (Texas) | 1,525.87 mi (2,455.65 km) |
