| Sumter to Rowlett (Texas) | 933.33 mi (1,502.05 km) |
| Sumter to Roy (Utah) | 1,793.39 mi (2,886.17 km) |
| Sumter to Royal Kunia (Hawaii) | 4,721.76 mi (7,598.94 km) |
| Sumter to Royal Oak (Michigan) | 610.65 mi (982.74 km) |
| Sumter to Royal Palm Beach (Florida) | 500.02 mi (804.70 km) |
| Sumter to Royse City (Texas) | 919.44 mi (1,479.69 km) |
| Sumter to Ruskin (Florida) | 447.10 mi (719.54 km) |
| Sumter to Russellville (Alabama) | 420.80 mi (677.21 km) |
| Sumter to Russellville (Arkansas) | 730.14 mi (1,175.05 km) |
| Sumter to Ruston (Louisiana) | 713.75 mi (1,148.67 km) |
| Sumter to Rutherford (New Jersey) | 587.16 mi (944.95 km) |
| Sumter to Rutland (Vermont) | 777.64 mi (1,251.49 km) |
| Sumter to Sabana Grande (Puerto Rico) | 1,373.77 mi (2,210.87 km) |
| Sumter to Sachse (Texas) | 934.48 mi (1,503.90 km) |
| Sumter to Saco (Maine) | 850.95 mi (1,369.48 km) |
