255/70R16 Tire Size: 30.1" Tall, a 30-Inch Tire
Straight answer
A 255/70R16 stands 30.1 inches tall and 10.0 inches wide on a 16-inch wheel, which makes it a 30-inch tire in truck-speak. NTW stocks 7 tire models in this size right now.
255/70R16 dimensions
Overall diameter
30.06"
Section width
10.04"
Sidewall height
7.03"
Wheel diameter
16"
Circumference
94.4"
Revolutions per mile
671
≈ 30.1x10.0R16 flotation. Nominal math; real tires run a few tenths off depending on brand, load range, rim width, and air pressure.
What 255/70R16 means
- 255Section width: 255 mm (10.0") wall to wall
- 70Aspect ratio: sidewall is 70% of the width, so 7.0" 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.
255/70R16 compared to nearby 16-inch sizes
Speedometer column assumes your truck is calibrated for 255/70R16 and reads 65 mph.
| Size | Height | vs 255/70R16 | Width change | Actual speed | Compare |
|---|---|---|---|---|---|
| 225/75R16 | 29.3" | -0.8" (-2.6%) | -1.2" | 63.3 mph | Full comparison |
| 245/75R16 | 30.5" | +0.4" (+1.4%) | -0.4" | 65.9 mph | Full comparison |
| 265/70R16 | 30.6" | +0.6" (+1.8%) | +0.4" | 66.2 mph | Full comparison |
| 265/75R16 | 31.6" | +1.6" (+5.3%) | +0.4" | 68.4 mph | Full comparison |
| 305/70R16 | 32.8" | +2.8" (+9.2%) | +2.0" | 71.0 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 225/75R16 does.
Trucks that come with 255/70R16
- Ford Bronco (2021–2026) · 2021–2026: Base
- Ford Ranger (2019–2026) · 2019–2023: XL
- Ford Bronco (2021–2026) · Base
Tires in stock in 255/70R16
7 models, 9 SKUs at NTW (different load ranges and sidewall styles). Refreshed daily.
| Tire | Type | Options | From |
|---|---|---|---|
| Bfgoodrich Trail-Terrain T/A+ | All Terrain | 2 | $209 |
| Toyo Open Country A/T III | All Terrain | 2 | $215 |
| Bfgoodrich All-Terrain T/A KO3 | All Terrain | 1 | $245 |
| Bfgoodrich Mud-Terrain T/A KM3 | Mud Terrain | 1 | $273 |
| Falken Rubitrek A/T | All Terrain | 1 | $176 |
| Falken Wildpeak A/T4W | All Terrain | 1 | $223 |
| Toyo Open Country H/T II | All Terrain | 1 | $175 |
Prices per tire at NTW when last checked; confirm at checkout.
Frequently Asked Questions
How tall is a 255/70R16 tire in inches?+
A 255/70R16 is 30.06 inches tall and 10.04 inches wide, with a 7.03-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 255/70R16 a 30-inch tire?+
Close enough that everybody calls it one. It measures 30.1 inches, so it's sold and talked about as a 30. The flotation equivalent is 30.1x10.0R16.
What does 255/70R16 mean?+
255/70R16 means a tire 255 millimeters wide with a sidewall 70% as tall as it is wide, built for a 16-inch wheel.
255/70R16 vs 245/75R16: how much bigger?+
245/75R16 is 0.4 inches taller (1.4%) and 0.4 inches narrower. Going from 255/70R16 to 245/75R16, a speedometer reading 65 mph means you're actually doing 65.9.
Looking for another size? See the full truck tire size chart.