| Wheat Ridge to Radauti | 5,679.67 mi (9,140.55 km) |
| Wheat Ridge to Ramnicu Sarat | 5,849.76 mi (9,414.28 km) |
| Wheat Ridge to Ramnicu Valcea | 5,788.85 mi (9,316.26 km) |
| Wheat Ridge to Rasnov | 5,792.83 mi (9,322.66 km) |
| Wheat Ridge to Reghin | 5,705.67 mi (9,182.39 km) |
| Wheat Ridge to Resita | 5,704.50 mi (9,180.51 km) |
| Wheat Ridge to Roman | 5,758.46 mi (9,267.34 km) |
| Wheat Ridge to Rosiori de Vede | 5,862.15 mi (9,434.21 km) |
| Wheat Ridge to Rovinari | 5,763.76 mi (9,275.88 km) |
| Wheat Ridge to Roznov | 5,752.39 mi (9,257.58 km) |
| Wheat Ridge to Sabaoani | 5,751.39 mi (9,255.96 km) |
| Wheat Ridge to Sacele | 5,798.40 mi (9,331.62 km) |
| Wheat Ridge to Sacueni | 5,599.19 mi (9,011.02 km) |
| Wheat Ridge to Salcea | 5,702.69 mi (9,177.59 km) |
| Wheat Ridge to Salonta | 5,616.19 mi (9,038.38 km) |
