| Walnut Creek to Robbinsdale (Minnesota) | 1,556.10 mi (2,504.30 km) |
| Walnut Creek to Robertsville (New Jersey) | 2,533.74 mi (4,077.66 km) |
| Walnut Creek to Robinson (Texas) | 1,479.25 mi (2,380.63 km) |
| Walnut Creek to Robstown (Texas) | 1,571.07 mi (2,528.38 km) |
| Walnut Creek to Rochester (Michigan) | 2,058.98 mi (3,313.61 km) |
| Walnut Creek to Rochester (Minnesota) | 1,589.76 mi (2,558.47 km) |
| Walnut Creek to Rochester (New Hampshire) | 2,662.54 mi (4,284.95 km) |
| Walnut Creek to Rochester (New York) | 2,333.16 mi (3,754.86 km) |
| Walnut Creek to Rochester Hills (Michigan) | 2,057.24 mi (3,310.81 km) |
| Walnut Creek to Rock Hill (South Carolina) | 2,271.21 mi (3,655.15 km) |
| Walnut Creek to Rock Island (Illinois) | 1,681.24 mi (2,705.69 km) |
| Walnut Creek to Rock Springs (Wyoming) | 726.32 mi (1,168.89 km) |
| Walnut Creek to Rockford (Illinois) | 1,757.79 mi (2,828.89 km) |
| Walnut Creek to Rockledge (Florida) | 2,458.77 mi (3,957.00 km) |
| Walnut Creek to Rocklin (California) | 75.81 mi (122.01 km) |
