| Merrick to Odessa (Texas) | 1,705.13 mi (2,744.15 km) |
| Merrick to Ogden (Utah) | 1,988.85 mi (3,200.74 km) |
| Merrick to Oildale (California) | 2,473.11 mi (3,980.09 km) |
| Merrick to Ojus (Florida) | 1,083.79 mi (1,744.19 km) |
| Merrick to Okemos (Michigan) | 577.66 mi (929.66 km) |
| Merrick to Oklahoma City (Oklahoma) | 1,347.05 mi (2,167.87 km) |
| Merrick to Okmulgee (Oklahoma) | 1,265.00 mi (2,035.81 km) |
| Merrick to Olathe (Kansas) | 1,133.22 mi (1,823.75 km) |
| Merrick to Old Jamestown (Missouri) | 896.23 mi (1,442.34 km) |
| Merrick to Oldsmar (Florida) | 1,012.73 mi (1,629.83 km) |
| Merrick to Olean (New York) | 271.54 mi (437.01 km) |
| Merrick to Olive Branch (Mississippi) | 970.50 mi (1,561.87 km) |
| Merrick to Olivehurst (California) | 2,516.05 mi (4,049.19 km) |
| Merrick to Olney (Maryland) | 213.49 mi (343.57 km) |
| Merrick to Olympia (Washington) | 2,456.15 mi (3,952.80 km) |
