| Sleaford to Racale | 1,252.26 mi (2,015.32 km) |
| Sleaford to Racconigi | 676.27 mi (1,088.36 km) |
| Sleaford to Raffadali | 1,268.40 mi (2,041.29 km) |
| Sleaford to Ragusa | 1,328.58 mi (2,138.14 km) |
| Sleaford to Ramacca | 1,300.02 mi (2,092.18 km) |
| Sleaford to Randazzo | 1,276.77 mi (2,054.76 km) |
| Sleaford to Rapallo | 740.62 mi (1,191.91 km) |
| Sleaford to Ravanusa | 1,287.89 mi (2,072.65 km) |
| Sleaford to Ravenna | 823.70 mi (1,325.62 km) |
| Sleaford to Recanati | 920.54 mi (1,481.46 km) |
| Sleaford to Recco | 737.42 mi (1,186.77 km) |
| Sleaford to Reggello | 843.36 mi (1,357.26 km) |
| Sleaford to Reggio di Calabria | 1,282.62 mi (2,064.18 km) |
| Sleaford to Reggio Emilia | 760.39 mi (1,223.73 km) |
| Sleaford to Reggiolo | 754.04 mi (1,213.51 km) |
