| Simpelveld to Odessa (Texas) | 5,255.55 mi (8,457.99 km) |
| Simpelveld to Ogden (Utah) | 5,060.55 mi (8,144.16 km) |
| Simpelveld to Oildale (California) | 5,605.65 mi (9,021.43 km) |
| Simpelveld to Ojus (Florida) | 4,685.84 mi (7,541.14 km) |
| Simpelveld to Okemos (Michigan) | 4,041.36 mi (6,503.94 km) |
| Simpelveld to Oklahoma City (Oklahoma) | 4,887.83 mi (7,866.20 km) |
| Simpelveld to Okmulgee (Oklahoma) | 4,824.78 mi (7,764.73 km) |
| Simpelveld to Olathe (Kansas) | 4,612.86 mi (7,423.68 km) |
| Simpelveld to Old Jamestown (Missouri) | 4,447.71 mi (7,157.89 km) |
| Simpelveld to Oldsmar (Florida) | 4,685.16 mi (7,540.03 km) |
| Simpelveld to Olean (New York) | 3,840.35 mi (6,180.45 km) |
| Simpelveld to Olive Branch (Mississippi) | 4,625.13 mi (7,443.43 km) |
| Simpelveld to Olivehurst (California) | 5,461.54 mi (8,789.50 km) |
| Simpelveld to Olney (Maryland) | 3,919.18 mi (6,307.32 km) |
| Simpelveld to Olympia (Washington) | 5,023.57 mi (8,084.65 km) |
