| North Potomac to Os | 3,689.44 mi (5,937.58 km) |
| North Potomac to Oslo | 3,868.28 mi (6,225.40 km) |
| North Potomac to Porsgrunn | 3,853.83 mi (6,202.15 km) |
| North Potomac to Randaberg | 3,718.80 mi (5,984.83 km) |
| North Potomac to Ringsaker | 3,843.63 mi (6,185.72 km) |
| North Potomac to Royken | 3,862.57 mi (6,216.21 km) |
| North Potomac to Rygge | 3,880.72 mi (6,245.41 km) |
| North Potomac to Sand | 3,870.45 mi (6,228.89 km) |
| North Potomac to Sande | 3,858.73 mi (6,210.02 km) |
| North Potomac to Sandefjord | 3,870.29 mi (6,228.63 km) |
| North Potomac to Sandnes | 3,726.03 mi (5,996.47 km) |
| North Potomac to Sandvika | 3,861.80 mi (6,214.97 km) |
| North Potomac to Sarpsborg | 3,895.99 mi (6,269.99 km) |
| North Potomac to Sem | 3,870.32 mi (6,228.69 km) |
| North Potomac to Ski | 3,877.51 mi (6,240.26 km) |
