| Round Lake to Orthez | 4,198.02 mi (6,756.06 km) |
| Round Lake to Orvault | 4,027.75 mi (6,482.04 km) |
| Round Lake to Osny | 4,111.75 mi (6,617.23 km) |
| Round Lake to Ostwald | 4,347.21 mi (6,996.16 km) |
| Round Lake to Ouistreham | 4,013.52 mi (6,459.14 km) |
| Round Lake to Oullins | 4,344.13 mi (6,991.21 km) |
| Round Lake to Outreau | 4,036.28 mi (6,495.77 km) |
| Round Lake to Oyonnax | 4,356.89 mi (7,011.73 km) |
| Round Lake to Ozoir-la-Ferriere | 4,145.80 mi (6,672.02 km) |
| Round Lake to Pace | 3,991.74 mi (6,424.08 km) |
| Round Lake to Palaiseau | 4,131.18 mi (6,648.49 km) |
| Round Lake to Pamiers | 4,312.55 mi (6,940.38 km) |
| Round Lake to Panazol | 4,198.15 mi (6,756.27 km) |
| Round Lake to Pantin | 4,130.73 mi (6,647.76 km) |
| Round Lake to Paray-le-Monial | 4,288.48 mi (6,901.64 km) |
