| Sleaford to Newtown | 125.81 mi (202.47 km) |
| Sleaford to Normanton | 63.70 mi (102.51 km) |
| Sleaford to North Hykeham | 14.83 mi (23.87 km) |
| Sleaford to North Shields | 145.30 mi (233.84 km) |
| Sleaford to North Tidworth | 132.61 mi (213.42 km) |
| Sleaford to North Walsham | 75.93 mi (122.20 km) |
| Sleaford to Northallerton | 101.60 mi (163.51 km) |
| Sleaford to Northampton | 56.61 mi (91.11 km) |
| Sleaford to Northenden | 81.49 mi (131.14 km) |
| Sleaford to Northfield | 76.56 mi (123.21 km) |
| Sleaford to Northfleet | 112.13 mi (180.46 km) |
| Sleaford to Northolt | 100.15 mi (161.18 km) |
| Sleaford to Northwich | 89.14 mi (143.45 km) |
| Sleaford to Northwood | 96.39 mi (155.12 km) |
| Sleaford to Norton | 116.07 mi (186.79 km) |
