| Irmo to Oschatz | 4,594.84 mi (7,394.68 km) |
| Irmo to Oschersleben | 4,501.77 mi (7,244.90 km) |
| Irmo to Osnabruck | 4,369.79 mi (7,032.49 km) |
| Irmo to Ostbevern | 4,368.08 mi (7,029.74 km) |
| Irmo to Osterburg | 4,499.85 mi (7,241.81 km) |
| Irmo to Ostercappeln | 4,375.23 mi (7,041.26 km) |
| Irmo to Osterhofen | 4,670.81 mi (7,516.93 km) |
| Irmo to Osterholz-Scharmbeck | 4,374.67 mi (7,040.36 km) |
| Irmo to Osternienburg | 4,537.72 mi (7,302.75 km) |
| Irmo to Osterode | 4,470.98 mi (7,195.34 km) |
| Irmo to Osterwieck | 4,482.47 mi (7,213.84 km) |
| Irmo to Ostfildern | 4,514.81 mi (7,265.88 km) |
| Irmo to Osthofen | 4,449.57 mi (7,160.89 km) |
| Irmo to Ostrhauderfehn | 4,331.68 mi (6,971.17 km) |
| Irmo to Ostringen | 4,478.78 mi (7,207.90 km) |
