| Sleaford to Cassina de' Pecchi | 678.15 mi (1,091.37 km) |
| Sleaford to Cassino | 1,034.10 mi (1,664.23 km) |
| Sleaford to Castagneto Carducci | 846.30 mi (1,361.98 km) |
| Sleaford to Castano Primo | 659.17 mi (1,060.83 km) |
| Sleaford to Castel Bolognese | 816.56 mi (1,314.12 km) |
| Sleaford to Castel Gandolfo | 985.65 mi (1,586.25 km) |
| Sleaford to Castel Goffredo | 723.05 mi (1,163.63 km) |
| Sleaford to Castel Maggiore | 789.75 mi (1,270.97 km) |
| Sleaford to Castel Mella | 702.30 mi (1,130.24 km) |
| Sleaford to Castel San Giorgio | 1,100.52 mi (1,771.12 km) |
| Sleaford to Castel San Giovanni | 706.10 mi (1,136.35 km) |
| Sleaford to Castel San Pietro Terme | 805.40 mi (1,296.17 km) |
| Sleaford to Castel Volturno | 1,062.16 mi (1,709.38 km) |
| Sleaford to Castelbuono | 1,250.86 mi (2,013.07 km) |
| Sleaford to Casteldaccia | 1,228.97 mi (1,977.84 km) |
