Orbit North Carolina Interstate speed limits
The posted limits on every Interstate in North Carolina, measured along each road: the limit you'll see most, and the range from the slowest stretch to the fastest. The highest Interstate limit in North Carolina is 70 mph.
| Interstate | Usually | Range |
|---|---|---|
| I-26 | 55 mph | 35 to 65 mph |
| I-40 | 55 mph | 35 to 70 mph |
| I-42 | 55 mph | 55 to 70 mph |
| I-73 | 55 mph | 35 to 70 mph |
| I-74 | 55 mph | 35 to 70 mph |
| I-77 | 55 mph | 35 to 70 mph |
| I-85 | 55 mph | 35 to 70 mph |
| I-87 | 70 mph | 35 to 70 mph |
| I-95 | 55 mph | 35 to 70 mph |
| I-97 | 60 mph | 35 to 60 mph |
| I-140 | 70 mph | 35 to 70 mph |
| I-240 | 35 mph | 35 to 55 mph |
| I-277 | 35 mph | 35 to 50 mph |
| I-285 | 55 mph | 35 to 65 mph |
| I-295 | 65 mph | 35 to 65 mph |
| I-397 | 55 mph | 55 to 60 mph |
| I-440 | 35 mph | 35 to 60 mph |
| I-485 | 70 mph | 35 to 70 mph |
| I-540 | 70 mph | 35 to 70 mph |
| I-587 | 70 mph | 55 to 70 mph |
| I-785 | 70 mph | 35 to 70 mph |
| I-795 | 70 mph | 35 to 70 mph |
| I-840 | 70 mph | 35 to 70 mph |
| I-885 | 65 mph | 35 to 65 mph |
Posted limits as of October 2026, from state and federal road data and © OpenStreetMap contributors, measured by length of road. Work zones, weather and signs can set a lower limit; always follow the posted sign.
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