| Buffalo Grove to Caguas (Puerto Rico) | 2,095.87 mi (3,372.98 km) |
| Buffalo Grove to Cahokia (Illinois) | 274.90 mi (442.41 km) |
| Buffalo Grove to Calabasas (California) | 1,747.18 mi (2,811.81 km) |
| Buffalo Grove to Caldwell (Idaho) | 1,448.70 mi (2,331.45 km) |
| Buffalo Grove to Caledonia (Wisconsin) | 43.82 mi (70.52 km) |
| Buffalo Grove to Calera (Alabama) | 628.26 mi (1,011.09 km) |
| Buffalo Grove to Calexico (California) | 1,637.29 mi (2,634.96 km) |
| Buffalo Grove to Calhoun (Georgia) | 555.02 mi (893.22 km) |
| Buffalo Grove to California (Maryland) | 660.61 mi (1,063.15 km) |
| Buffalo Grove to California City (California) | 1,675.02 mi (2,695.69 km) |
| Buffalo Grove to Callaway (Florida) | 842.02 mi (1,355.11 km) |
| Buffalo Grove to Calumet City (Illinois) | 43.73 mi (70.38 km) |
| Buffalo Grove to Calverton (Maryland) | 615.72 mi (990.91 km) |
| Buffalo Grove to Camano (Washington) | 1,715.82 mi (2,761.35 km) |
| Buffalo Grove to Camarillo (California) | 1,762.87 mi (2,837.06 km) |
