| River Grove to Pontefract | 3,840.88 mi (6,181.30 km) |
| River Grove to Ponteland | 3,785.04 mi (6,091.44 km) |
| River Grove to Pontneddfechan | 3,813.10 mi (6,136.59 km) |
| River Grove to Pontypridd | 3,827.19 mi (6,159.27 km) |
| River Grove to Poole | 3,907.19 mi (6,288.01 km) |
| River Grove to Port Glasgow | 3,654.99 mi (5,882.14 km) |
| River Grove to Port Talbot | 3,809.88 mi (6,131.41 km) |
| River Grove to Portchester | 3,936.68 mi (6,335.48 km) |
| River Grove to Porthcawl | 3,817.40 mi (6,143.50 km) |
| River Grove to Portishead | 3,853.14 mi (6,201.03 km) |
| River Grove to Portlethen | 3,715.18 mi (5,979.01 km) |
| River Grove to Portsmouth | 3,939.11 mi (6,339.39 km) |
| River Grove to Potters Bar | 3,945.10 mi (6,349.02 km) |
| River Grove to Poulton le Fylde | 3,774.12 mi (6,073.85 km) |
| River Grove to Poynton | 3,821.29 mi (6,149.78 km) |
