| Sleaford to Castelfidardo | 916.97 mi (1,475.72 km) |
| Sleaford to Castelfiorentino | 831.64 mi (1,338.39 km) |
| Sleaford to Castelfranco di Sopra | 847.43 mi (1,363.81 km) |
| Sleaford to Castelfranco di Sotto | 819.80 mi (1,319.34 km) |
| Sleaford to Castelfranco Emilia | 778.60 mi (1,253.03 km) |
| Sleaford to Castelfranco Veneto | 750.11 mi (1,207.19 km) |
| Sleaford to Castellabate | 1,136.75 mi (1,829.43 km) |
| Sleaford to Castellammare del Golfo | 1,213.84 mi (1,953.48 km) |
| Sleaford to Castellammare di Stabia | 1,099.03 mi (1,768.71 km) |
| Sleaford to Castellamonte | 640.51 mi (1,030.80 km) |
| Sleaford to Castellana Grotte | 1,172.14 mi (1,886.38 km) |
| Sleaford to Castellaneta | 1,178.18 mi (1,896.10 km) |
| Sleaford to Castellanza | 659.18 mi (1,060.86 km) |
| Sleaford to Castellarano | 772.18 mi (1,242.71 km) |
| Sleaford to Castelleone | 701.84 mi (1,129.51 km) |
