| Boulder to Zirndorf | 5,140.82 mi (8,273.35 km) |
| Boulder to Zittau | 5,188.91 mi (8,350.74 km) |
| Boulder to Zorbig | 5,072.07 mi (8,162.71 km) |
| Boulder to Zorneding | 5,235.97 mi (8,426.48 km) |
| Boulder to Zossen | 5,082.72 mi (8,179.85 km) |
| Boulder to Zschopau | 5,143.55 mi (8,277.75 km) |
| Boulder to Zulpich | 4,942.51 mi (7,954.19 km) |
| Boulder to Zweibrucken | 5,033.11 mi (8,100.00 km) |
| Boulder to Zwenkau | 5,097.88 mi (8,204.24 km) |
| Boulder to Zwickau | 5,127.80 mi (8,252.39 km) |
| Boulder to Zwiesel | 5,234.60 mi (8,424.27 km) |
| Boulder to Zwonitz | 5,141.95 mi (8,275.16 km) |
| Boulder to Acharnes | 6,149.21 mi (9,896.19 km) |
| Boulder to Agia Paraskevi | 6,155.99 mi (9,907.11 km) |
| Boulder to Agia Varvara | 6,151.13 mi (9,899.29 km) |
