| Round Rock to Glyka Nera | 6,385.37 mi (10,276.27 km) |
| Round Rock to Grevena | 6,192.09 mi (9,965.20 km) |
| Round Rock to Ialysos | 6,631.16 mi (10,671.82 km) |
| Round Rock to Ilion | 6,377.49 mi (10,263.58 km) |
| Round Rock to Ilioupoli | 6,384.17 mi (10,274.33 km) |
| Round Rock to Ioannina | 6,188.16 mi (9,958.88 km) |
| Round Rock to Irakleio | 6,562.50 mi (10,561.32 km) |
| Round Rock to Irakleio | 6,379.38 mi (10,266.62 km) |
| Round Rock to Kaisariani | 6,382.87 mi (10,272.23 km) |
| Round Rock to Kalamaria | 6,229.11 mi (10,024.78 km) |
| Round Rock to Kalamata | 6,358.98 mi (10,233.78 km) |
| Round Rock to Kallithea | 6,381.38 mi (10,269.85 km) |
| Round Rock to Kalymnos | 6,557.52 mi (10,553.32 km) |
| Round Rock to Kalyvia Thorikou | 6,395.54 mi (10,292.62 km) |
| Round Rock to Kamatero | 6,376.73 mi (10,262.36 km) |
