| Grimstad to Orthez | 1,101.85 mi (1,773.26 km) |
| Grimstad to Orvault | 873.57 mi (1,405.88 km) |
| Grimstad to Osny | 693.92 mi (1,116.75 km) |
| Grimstad to Ostwald | 677.33 mi (1,090.07 km) |
| Grimstad to Ouistreham | 721.40 mi (1,160.98 km) |
| Grimstad to Oullins | 886.70 mi (1,427.01 km) |
| Grimstad to Outreau | 596.92 mi (960.65 km) |
| Grimstad to Oyonnax | 843.92 mi (1,358.16 km) |
| Grimstad to Ozoir-la-Ferriere | 703.21 mi (1,131.71 km) |
| Grimstad to Pace | 822.37 mi (1,323.47 km) |
| Grimstad to Palaiseau | 713.61 mi (1,148.44 km) |
| Grimstad to Pamiers | 1,093.90 mi (1,760.47 km) |
| Grimstad to Panazol | 916.17 mi (1,474.44 km) |
| Grimstad to Pantin | 699.41 mi (1,125.58 km) |
| Grimstad to Paray-le-Monial | 842.39 mi (1,355.69 km) |
