| Rockford to Lombard (Illinois) | 60.00 mi (96.57 km) |
| Rockford to Lomita (California) | 1,686.09 mi (2,713.50 km) |
| Rockford to Lompoc (California) | 1,767.00 mi (2,843.71 km) |
| Rockford to London (Ohio) | 335.47 mi (539.88 km) |
| Rockford to Lone Tree (Colorado) | 845.47 mi (1,360.66 km) |
| Rockford to Long Beach (California) | 1,678.38 mi (2,701.10 km) |
| Rockford to Long Beach (Mississippi) | 822.15 mi (1,323.12 km) |
| Rockford to Long Beach (New York) | 804.92 mi (1,295.39 km) |
| Rockford to Long Branch (New Jersey) | 793.21 mi (1,276.54 km) |
| Rockford to Longmont (Colorado) | 844.62 mi (1,359.28 km) |
| Rockford to Longview (Texas) | 741.68 mi (1,193.62 km) |
| Rockford to Longview (Washington) | 1,687.23 mi (2,715.34 km) |
| Rockford to Longwood (Florida) | 1,031.34 mi (1,659.79 km) |
| Rockford to Lorain (Ohio) | 358.48 mi (576.92 km) |
| Rockford to Lorton (Virginia) | 668.78 mi (1,076.30 km) |
