| Sleaford to Coudekerque-Branche | 180.99 mi (291.28 km) |
| Sleaford to Coueron | 403.56 mi (649.47 km) |
| Sleaford to Coulommiers | 326.46 mi (525.38 km) |
| Sleaford to Courbevoic | 305.97 mi (492.40 km) |
| Sleaford to Courcouronnes | 326.51 mi (525.47 km) |
| Sleaford to Cournon-d'Auvergne | 526.68 mi (847.61 km) |
| Sleaford to Courrieres | 226.73 mi (364.88 km) |
| Sleaford to Coutras | 549.80 mi (884.82 km) |
| Sleaford to Couzeix | 497.47 mi (800.59 km) |
| Sleaford to Cran-Gevrier | 570.28 mi (917.77 km) |
| Sleaford to Craponne | 551.36 mi (887.32 km) |
| Sleaford to Creil | 287.11 mi (462.06 km) |
| Sleaford to Crepy-en-Valois | 296.64 mi (477.40 km) |
| Sleaford to Crest | 621.94 mi (1,000.91 km) |
| Sleaford to Creteil | 316.35 mi (509.11 km) |
