305/70R16 Tire Size: 32.8" Tall, a 33-Inch Tire
Straight answer
A 305/70R16 stands 32.8 inches tall and 12.0 inches wide on a 16-inch wheel, which makes it a 33-inch tire in truck-speak. NTW stocks 10 tire models in this size right now.
305/70R16 dimensions
Overall diameter
32.81"
Section width
12.01"
Sidewall height
8.41"
Wheel diameter
16"
Circumference
103.1"
Revolutions per mile
615
≈ 32.8x12.0R16 flotation. Nominal math; real tires run a few tenths off depending on brand, load range, rim width, and air pressure.
What 305/70R16 means
- 305Section width: 305 mm (12.0") wall to wall
- 70Aspect ratio: sidewall is 70% of the width, so 8.4" tall
- RRadial construction
- 16Fits a 16-inch wheel
Want the full rundown on sidewall codes, load index, and speed rating? Read how to read a tire size.
305/70R16 compared to nearby 16-inch sizes
Speedometer column assumes your truck is calibrated for 305/70R16 and reads 65 mph.
| Size | Height | vs 305/70R16 | Width change | Actual speed | Compare |
|---|---|---|---|---|---|
| 265/70R16 | 30.6" | -2.2" (-6.7%) | -1.6" | 60.6 mph | Full comparison |
| 265/75R16 | 31.6" | -1.2" (-3.5%) | -1.6" | 62.7 mph | Full comparison |
| 285/75R16 | 32.8" | +0.0" (+0.1%) | -0.8" | 65.0 mph | Full comparison |
| 33x12.50R16 | 33.0" | +0.2" (+0.6%) | +0.5" | 65.4 mph | Full comparison |
| 315/75R16 | 34.6" | +1.8" (+5.5%) | +0.4" | 68.5 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 265/75R16 does.
Tires in stock in 305/70R16
10 models, 10 SKUs at NTW (different load ranges and sidewall styles). Refreshed daily.
| Tire | Type | Options | From |
|---|---|---|---|
| Bfgoodrich All-Terrain T/A KO3 | All Terrain | 1 | $339 |
| Bfgoodrich Mud-Terrain T/A KM3 | Mud Terrain | 1 | $345 |
| Falken Rubitrek A/T | All Terrain | 1 | $286 |
| Interco SSR | Mud Terrain | 1 | $432 |
| Mickey Thompson Baja Legend EXP | All Terrain | 1 | $306 |
| Mickey Thompson Baja Legend MTZ | Mud Terrain | 1 | $331 |
| Nitto Recon Grappler A/T | All Terrain | 1 | $316 |
| Toyo Open Country A/T III | All Terrain | 1 | $345 |
| Toyo Open Country M/T | Mud Terrain | 1 | $361 |
| Toyo Open Country R/T | All Terrain | 1 | $335 |
Prices per tire at NTW when last checked; confirm at checkout.
Frequently Asked Questions
How tall is a 305/70R16 tire in inches?+
A 305/70R16 is 32.81 inches tall and 12.01 inches wide, with a 8.41-inch sidewall on a 16-inch wheel. Real mounted tires vary a few tenths of an inch by brand, load range, and rim width.
Is 305/70R16 a 33-inch tire?+
Close enough that everybody calls it one. It measures 32.8 inches, so it's sold and talked about as a 33. The flotation equivalent is 32.8x12.0R16.
What does 305/70R16 mean?+
305/70R16 means a tire 305 millimeters wide with a sidewall 70% as tall as it is wide, built for a 16-inch wheel.
305/70R16 vs 315/75R16: how much bigger?+
315/75R16 is 1.8 inches taller (5.5%) and 0.4 inches wider. Going from 305/70R16 to 315/75R16, a speedometer reading 65 mph means you're actually doing 68.5.
Looking for another size? See the full truck tire size chart.