| Friern Barnet to Oakley (California) | 5,313.78 mi (8,551.70 km) |
| Friern Barnet to Oakton (Virginia) | 3,672.68 mi (5,910.60 km) |
| Friern Barnet to Oakville (Missouri) | 4,209.23 mi (6,774.09 km) |
| Friern Barnet to Oatfield (Oregon) | 4,910.43 mi (7,902.58 km) |
| Friern Barnet to Ocala (Florida) | 4,336.55 mi (6,979.00 km) |
| Friern Barnet to Ocean Acres (New Jersey) | 3,511.26 mi (5,650.83 km) |
| Friern Barnet to Ocean City (New Jersey) | 3,545.43 mi (5,705.81 km) |
| Friern Barnet to Ocean Pines (Maryland) | 3,607.33 mi (5,805.44 km) |
| Friern Barnet to Ocean Pointe (Hawaii) | 7,222.67 mi (11,623.77 km) |
| Friern Barnet to Ocean Springs (Mississippi) | 4,547.88 mi (7,319.11 km) |
| Friern Barnet to Oceanside (California) | 5,451.80 mi (8,773.83 km) |
| Friern Barnet to Oceanside (New York) | 3,446.04 mi (5,545.87 km) |
| Friern Barnet to Ocoee (Florida) | 4,340.61 mi (6,985.54 km) |
| Friern Barnet to Oconomowoc (Wisconsin) | 3,918.98 mi (6,306.99 km) |
| Friern Barnet to Odenton (Maryland) | 3,639.94 mi (5,857.91 km) |
