| River Grove to Oswaldtwistle | 3,799.43 mi (6,114.59 km) |
| River Grove to Oswestry | 3,800.70 mi (6,116.63 km) |
| River Grove to Otley | 3,820.69 mi (6,148.80 km) |
| River Grove to Ovenden | 3,818.46 mi (6,145.21 km) |
| River Grove to Oxford | 3,902.53 mi (6,280.52 km) |
| River Grove to Oxted | 3,966.08 mi (6,382.78 km) |
| River Grove to Padbury | 3,907.27 mi (6,288.14 km) |
| River Grove to Padiham | 3,800.88 mi (6,116.92 km) |
| River Grove to Paignton | 3,854.13 mi (6,202.62 km) |
| River Grove to Paisley | 3,666.87 mi (5,901.26 km) |
| River Grove to Palmers Green | 3,950.48 mi (6,357.68 km) |
| River Grove to Parkstone | 3,908.70 mi (6,290.44 km) |
| River Grove to Partick | 3,670.22 mi (5,906.66 km) |
| River Grove to Patcham | 3,973.36 mi (6,394.50 km) |
| River Grove to Peebles | 3,716.32 mi (5,980.84 km) |
