| Irmo to Sprimont | 4,319.65 mi (6,951.81 km) |
| Irmo to Stabroek | 4,246.38 mi (6,833.88 km) |
| Irmo to Staden | 4,199.51 mi (6,758.46 km) |
| Irmo to Steenokkerzeel | 4,262.00 mi (6,859.03 km) |
| Irmo to Stekene | 4,235.96 mi (6,817.12 km) |
| Irmo to Strombeek-Bever | 4,255.74 mi (6,848.96 km) |
| Irmo to Temse | 4,244.71 mi (6,831.21 km) |
| Irmo to Ternat | 4,249.95 mi (6,839.64 km) |
| Irmo to Tervuren | 4,264.11 mi (6,862.43 km) |
| Irmo to Tessenderlo | 4,282.05 mi (6,891.30 km) |
| Irmo to Theux | 4,324.78 mi (6,960.07 km) |
| Irmo to Thuin | 4,266.84 mi (6,866.81 km) |
| Irmo to Tielt | 4,211.73 mi (6,778.12 km) |
| Irmo to Tienen | 4,282.24 mi (6,891.60 km) |
| Irmo to Tongeren | 4,304.38 mi (6,927.22 km) |
