| Highlands Ranch to Reidsville (North Carolina) | 1,391.46 mi (2,239.35 km) |
| Highlands Ranch to Reisterstown (Maryland) | 1,495.01 mi (2,405.98 km) |
| Highlands Ranch to Rendon (Texas) | 646.11 mi (1,039.81 km) |
| Highlands Ranch to Reno (Nevada) | 791.75 mi (1,274.20 km) |
| Highlands Ranch to Renton (Washington) | 1,018.97 mi (1,639.87 km) |
| Highlands Ranch to Republic (Missouri) | 645.67 mi (1,039.10 km) |
| Highlands Ranch to Reston (Virginia) | 1,472.90 mi (2,370.41 km) |
| Highlands Ranch to Revere (Massachusetts) | 1,770.96 mi (2,850.08 km) |
| Highlands Ranch to Rexburg (Idaho) | 459.47 mi (739.44 km) |
| Highlands Ranch to Reynoldsburg (Ohio) | 1,175.36 mi (1,891.57 km) |
| Highlands Ranch to Rialto (California) | 781.36 mi (1,257.48 km) |
| Highlands Ranch to Richardson (Texas) | 645.92 mi (1,039.51 km) |
| Highlands Ranch to Richfield (Minnesota) | 701.55 mi (1,129.04 km) |
| Highlands Ranch to Richfield (Wisconsin) | 902.22 mi (1,451.98 km) |
| Highlands Ranch to Richland (Washington) | 859.53 mi (1,383.28 km) |
