Orbit Tennessee Interstate speed limits
The posted limits on every Interstate in Tennessee, 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 Tennessee is 70 mph.
| Interstate | Usually | Range |
|---|---|---|
| I-24 | 70 mph | 55 to 70 mph |
| I-26 | 65 mph | 50 to 65 mph |
| I-40 | 70 mph | 40 to 70 mph |
| I-55 | 55 mph | 45 to 65 mph |
| I-65 | 70 mph | 55 to 70 mph |
| I-75 | 65 mph | 55 to 70 mph |
| I-81 | 70 mph | 70 mph |
| I-140 | 65 mph | 55 to 65 mph |
| I-155 | 70 mph | 70 mph |
| I-240 | 55 mph | 55 mph |
| I-269 | 65 mph | 65 to 70 mph |
| I-275 | 55 mph | 55 mph |
| I-440 | 55 mph | 55 to 60 mph |
| I-640 | 65 mph | 65 mph |
| I-840 | 70 mph | 70 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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