| Hemel Hempstead to Ondokuzmayis | 1,849.52 mi (2,976.51 km) |
| Hemel Hempstead to Ordu | 1,946.43 mi (3,132.48 km) |
| Hemel Hempstead to Ortahisar | 1,919.30 mi (3,088.82 km) |
| Hemel Hempstead to Ortakent | 1,686.10 mi (2,713.51 km) |
| Hemel Hempstead to Ortaklar | 1,655.99 mi (2,665.06 km) |
| Hemel Hempstead to Ortakoy | 1,879.94 mi (3,025.48 km) |
| Hemel Hempstead to Ortakoy | 1,864.60 mi (3,000.79 km) |
| Hemel Hempstead to Osmaneli | 1,643.64 mi (2,645.18 km) |
| Hemel Hempstead to Osmaniye | 2,046.23 mi (3,293.08 km) |
| Hemel Hempstead to Ozdere | 1,635.03 mi (2,631.33 km) |
| Hemel Hempstead to Palu | 2,128.80 mi (3,425.98 km) |
| Hemel Hempstead to Pamukkale | 1,717.94 mi (2,764.75 km) |
| Hemel Hempstead to Patnos | 2,230.06 mi (3,588.94 km) |
| Hemel Hempstead to Pazar | 1,909.48 mi (3,073.01 km) |
| Hemel Hempstead to Pazarcik | 2,070.97 mi (3,332.91 km) |
