| Howard to River Ridge (Louisiana) | 1,016.18 mi (1,635.38 km) |
| Howard to Riverbank (California) | 1,760.18 mi (2,832.74 km) |
| Howard to Riverdale (Georgia) | 785.48 mi (1,264.10 km) |
| Howard to Riverdale (Illinois) | 203.49 mi (327.48 km) |
| Howard to Riverside (California) | 1,718.86 mi (2,766.23 km) |
| Howard to Riverside (Ohio) | 388.12 mi (624.62 km) |
| Howard to Riverton (Utah) | 1,242.17 mi (1,999.08 km) |
| Howard to Riverton (Wyoming) | 1,016.14 mi (1,635.31 km) |
| Howard to Riverview (Florida) | 1,200.52 mi (1,932.06 km) |
| Howard to Riverview (Michigan) | 296.52 mi (477.20 km) |
| Howard to Riviera Beach (Florida) | 1,307.27 mi (2,103.85 km) |
| Howard to Riviera Beach (Maryland) | 701.72 mi (1,129.32 km) |
| Howard to Roanoke (Virginia) | 658.22 mi (1,059.30 km) |
| Howard to Roanoke Rapids (North Carolina) | 783.71 mi (1,261.26 km) |
| Howard to Robbinsdale (Minnesota) | 258.80 mi (416.50 km) |
