| Grenada to Orangevale (California) | 1,773.87 mi (2,854.77 km) |
| Grenada to Orchards (Washington) | 1,905.59 mi (3,066.75 km) |
| Grenada to Orcutt (California) | 1,741.41 mi (2,802.53 km) |
| Grenada to Oregon (Ohio) | 645.59 mi (1,038.98 km) |
| Grenada to Oregon (Wisconsin) | 632.18 mi (1,017.40 km) |
| Grenada to Oregon City (Oregon) | 1,902.84 mi (3,062.33 km) |
| Grenada to Orem (Utah) | 1,284.13 mi (2,066.61 km) |
| Grenada to Orinda (California) | 1,825.73 mi (2,938.22 km) |
| Grenada to Orland Park (Illinois) | 551.09 mi (886.90 km) |
| Grenada to Orlando (Florida) | 620.58 mi (998.73 km) |
| Grenada to Ormond Beach (Florida) | 598.90 mi (963.84 km) |
| Grenada to Oro Valley (Arizona) | 1,226.40 mi (1,973.70 km) |
| Grenada to Oroville (California) | 1,794.16 mi (2,887.41 km) |
| Grenada to Oshkosh (Wisconsin) | 710.76 mi (1,143.85 km) |
| Grenada to Oskaloosa (Iowa) | 541.47 mi (871.41 km) |
