| Hoeilaart to Grevena | 1,100.27 mi (1,770.72 km) |
| Hoeilaart to Ialysos | 1,533.20 mi (2,467.45 km) |
| Hoeilaart to Ilion | 1,287.22 mi (2,071.57 km) |
| Hoeilaart to Ilioupoli | 1,294.23 mi (2,082.87 km) |
| Hoeilaart to Ioannina | 1,101.96 mi (1,773.43 km) |
| Hoeilaart to Irakleio | 1,481.70 mi (2,384.57 km) |
| Hoeilaart to Irakleio | 1,288.71 mi (2,073.98 km) |
| Hoeilaart to Kaisariani | 1,292.69 mi (2,080.38 km) |
| Hoeilaart to Kalamaria | 1,130.96 mi (1,820.10 km) |
| Hoeilaart to Kalamata | 1,286.25 mi (2,070.02 km) |
| Hoeilaart to Kallithea | 1,291.58 mi (2,078.60 km) |
| Hoeilaart to Kalymnos | 1,460.50 mi (2,350.44 km) |
| Hoeilaart to Kalyvia Thorikou | 1,305.39 mi (2,100.83 km) |
| Hoeilaart to Kamatero | 1,286.26 mi (2,070.04 km) |
| Hoeilaart to Karditsa | 1,154.61 mi (1,858.16 km) |
