| Boulder City to Cosham | 5,230.47 mi (8,417.63 km) |
| Boulder City to Costessey | 5,222.62 mi (8,405.00 km) |
| Boulder City to Cottingham | 5,120.99 mi (8,241.43 km) |
| Boulder City to Coulsdon | 5,239.73 mi (8,432.54 km) |
| Boulder City to Coventry | 5,146.60 mi (8,282.66 km) |
| Boulder City to Cowdenbeath | 4,929.60 mi (7,933.42 km) |
| Boulder City to Cowes | 5,226.32 mi (8,410.96 km) |
| Boulder City to Cowley | 5,219.23 mi (8,399.55 km) |
| Boulder City to Cowley | 5,186.03 mi (8,346.10 km) |
| Boulder City to Cramlington | 5,027.63 mi (8,091.19 km) |
| Boulder City to Cranleigh | 5,236.86 mi (8,427.90 km) |
| Boulder City to Crawley | 5,247.67 mi (8,445.31 km) |
| Boulder City to Crayford | 5,244.42 mi (8,440.07 km) |
| Boulder City to Crewe | 5,086.34 mi (8,185.68 km) |
| Boulder City to Crigglestone | 5,092.10 mi (8,194.95 km) |
