| Grimstad to Manerbio | 898.75 mi (1,446.40 km) |
| Grimstad to Manfredonia | 1,197.63 mi (1,927.41 km) |
| Grimstad to Maniago | 858.61 mi (1,381.80 km) |
| Grimstad to Mantova | 915.65 mi (1,473.59 km) |
| Grimstad to Maranello | 958.86 mi (1,543.13 km) |
| Grimstad to Marano di Napoli | 1,229.70 mi (1,979.00 km) |
| Grimstad to Marano Vicentino | 881.48 mi (1,418.61 km) |
| Grimstad to Marcianise | 1,221.65 mi (1,966.06 km) |
| Grimstad to Marcon | 897.08 mi (1,443.72 km) |
| Grimstad to Mareno di Piave | 877.91 mi (1,412.86 km) |
| Grimstad to Margherita di Savoia | 1,218.31 mi (1,960.68 km) |
| Grimstad to Mariano Comense | 873.73 mi (1,406.12 km) |
| Grimstad to Marigliano | 1,229.81 mi (1,979.19 km) |
| Grimstad to Marino | 1,158.78 mi (1,864.88 km) |
| Grimstad to Marostica | 879.67 mi (1,415.69 km) |
