| Grimbergen to Grevena | 1,109.94 mi (1,786.28 km) |
| Grimbergen to Ialysos | 1,542.29 mi (2,482.07 km) |
| Grimbergen to Ilion | 1,296.90 mi (2,087.16 km) |
| Grimbergen to Ilioupoli | 1,303.93 mi (2,098.47 km) |
| Grimbergen to Ioannina | 1,111.90 mi (1,789.43 km) |
| Grimbergen to Irakleio | 1,491.67 mi (2,400.62 km) |
| Grimbergen to Irakleio | 1,298.38 mi (2,089.54 km) |
| Grimbergen to Kaisariani | 1,302.38 mi (2,095.98 km) |
| Grimbergen to Kalamaria | 1,140.07 mi (1,834.76 km) |
| Grimbergen to Kalamata | 1,296.53 mi (2,086.56 km) |
| Grimbergen to Kallithea | 1,301.29 mi (2,094.22 km) |
| Grimbergen to Kalymnos | 1,469.69 mi (2,365.24 km) |
| Grimbergen to Kalyvia Thorikou | 1,315.08 mi (2,116.41 km) |
| Grimbergen to Kamatero | 1,295.94 mi (2,085.61 km) |
| Grimbergen to Karditsa | 1,164.37 mi (1,873.87 km) |
