235/80R17 Tire Size: 31.8" Tall, a 32-Inch Tire
Straight answer
A 235/80R17 stands 31.8 inches tall and 9.3 inches wide on a 17-inch wheel, which makes it a 32-inch tire in truck-speak. NTW stocks 12 tire models in this size right now.
235/80R17 dimensions
Overall diameter
31.80"
Section width
9.25"
Sidewall height
7.40"
Wheel diameter
17"
Circumference
99.9"
Revolutions per mile
634
≈ 31.8x9.3R17 flotation. Nominal math; real tires run a few tenths off depending on brand, load range, rim width, and air pressure.
What 235/80R17 means
- 235Section width: 235 mm (9.3") wall to wall
- 80Aspect ratio: sidewall is 80% of the width, so 7.4" tall
- RRadial construction
- 17Fits a 17-inch wheel
Want the full rundown on sidewall codes, load index, and speed rating? Read how to read a tire size.
235/80R17 compared to nearby 17-inch sizes
Speedometer column assumes your truck is calibrated for 235/80R17 and reads 65 mph.
| Size | Height | vs 235/80R17 | Width change | Actual speed | Compare |
|---|---|---|---|---|---|
| 245/75R17 | 31.5" | -0.3" (-1.1%) | +0.4" | 64.3 mph | Full comparison |
| 265/70R17 | 31.6" | -0.2" (-0.6%) | +1.2" | 64.6 mph | Full comparison |
| 275/70R17 | 32.2" | +0.4" (+1.1%) | +1.6" | 65.7 mph | Full comparison |
| 285/70R17 | 32.7" | +0.9" (+2.8%) | +2.0" | 66.9 mph | Full comparison |
| 33x12.50R17 | 33.0" | +1.2" (+3.8%) | +3.2" | 67.4 mph | Full comparison |
Rule of thumb: inside 3% of stock diameter feels stock; past 8 to 10% and most owners budget for a re-gear. Run your exact numbers in the tire size calculator, or check what stepping down to 245/75R17 does.
Trucks that come with 235/80R17
- Ram 3500 (2011–2026) · 2011–2023: SLT, Big Horn, Laramie and others
- GMC Sierra 3500 HD (2007–2026) · 2011–2022: WT, SLE, SLT and others
- Chevrolet Silverado 3500 HD (2007–2026) · 2011–2022: LT, WT, LTZ
Tires in stock in 235/80R17
12 models, 12 SKUs at NTW (different load ranges and sidewall styles). Refreshed daily.
| Tire | Type | Options | From |
|---|---|---|---|
| Bfgoodrich All-Terrain T/A KO3 | All Terrain | 1 | $299 |
| BFGoodrich HD All Terrain KT | All Terrain | 1 | $327 |
| Falken Rubitrek A/T | All Terrain | 1 | $254 |
| Falken Wildpeak A/T4W | All Terrain | 1 | $286 |
| Falken Wildpeak M/T | Mud Terrain | 1 | $363 |
| Kenda Klever RT | All Terrain | 1 | $251 |
| Nitto EXO Grappler | All Terrain | 1 | $239 |
| Nitto Terra Grappler G3 | All Terrain | 1 | $282 |
| Toyo M-55 | Commercial, On/Off-Road | 1 | $298 |
| Toyo Open Country A/T III | All Terrain | 1 | $307 |
| Toyo Open Country C/T | All Terrain | 1 | $314 |
| Toyo Open Country H/T II | All Terrain | 1 | $250 |
Prices per tire at NTW when last checked; confirm at checkout.
Frequently Asked Questions
How tall is a 235/80R17 tire in inches?+
A 235/80R17 is 31.80 inches tall and 9.25 inches wide, with a 7.40-inch sidewall on a 17-inch wheel. Real mounted tires vary a few tenths of an inch by brand, load range, and rim width.
Is 235/80R17 a 32-inch tire?+
Close enough that everybody calls it one. It measures 31.8 inches, so it's sold and talked about as a 32. The flotation equivalent is 31.8x9.3R17.
What does 235/80R17 mean?+
235/80R17 means a tire 235 millimeters wide with a sidewall 80% as tall as it is wide, built for a 17-inch wheel.
235/80R17 vs 275/70R17: how much bigger?+
275/70R17 is 0.4 inches taller (1.1%) and 1.6 inches wider. Going from 235/80R17 to 275/70R17, a speedometer reading 65 mph means you're actually doing 65.7.
Looking for another size? See the full truck tire size chart.