| Petrila to Robertsville (New Jersey) | 4,634.42 mi (7,458.39 km) |
| Petrila to Robinson (Texas) | 5,950.13 mi (9,575.80 km) |
| Petrila to Robstown (Texas) | 6,171.52 mi (9,932.10 km) |
| Petrila to Rochester (Michigan) | 4,860.36 mi (7,822.00 km) |
| Petrila to Rochester (Minnesota) | 5,116.25 mi (8,233.82 km) |
| Petrila to Rochester (New Hampshire) | 4,372.48 mi (7,036.83 km) |
| Petrila to Rochester (New York) | 4,634.13 mi (7,457.91 km) |
| Petrila to Rochester Hills (Michigan) | 4,862.76 mi (7,825.85 km) |
| Petrila to Rock Hill (South Carolina) | 5,157.82 mi (8,300.71 km) |
| Petrila to Rock Island (Illinois) | 5,184.94 mi (8,344.36 km) |
| Petrila to Rock Springs (Wyoming) | 5,751.39 mi (9,255.98 km) |
| Petrila to Rockford (Illinois) | 5,092.10 mi (8,194.95 km) |
| Petrila to Rockledge (Florida) | 5,473.56 mi (8,808.84 km) |
| Petrila to Rocklin (California) | 6,215.92 mi (10,003.55 km) |
| Petrila to Rockport (Texas) | 6,136.60 mi (9,875.90 km) |
