Home / Tire size / 285/75R16
285/75R16 in Inches: Tire Diameter, Width and Sidewall
A 285/75R16 tire is 32.8 inches (834 mm) tall and 11.2 inches (285 mm) wide, with an 8.4-inch sidewall, for a 16-inch rim. It turns 614 times per mile.
Example: 285/75R16. Also accepts 275/55-20 or 275 55 20.
| Measure | Inches | Millimetres |
|---|---|---|
| Overall diameter | 32.8 in | 834 mm |
| Section width | 11.2 in | 285 mm |
| Sidewall height | 8.4 in | 214 mm |
| Circumference | 103.1 in | 2620 mm |
| Rim diameter | 16 in | 406 mm |
| Revolutions per mile | 614 | |
| Revolutions per km | 382 |
Nominal size from the size code; real tires vary by brand, rim width and inflation. Fit on your vehicle is not checked.
285/75R16 tire size explained
The code 285/75R16 describes the tire in three numbers. The 285 is the section width in millimetres, which is 11.2 inches. The 75 is the aspect ratio, so the sidewall is 75% of 285 mm, or 214 mm (8.4 in). The 16 is the wheel diameter in inches (406 mm).
Add the rim and two sidewalls together and the tire stands 32.8 inches high. One full turn of the wheel carries the vehicle 103.1 inches (2.62 m), which is why a 285/75R16 makes about 614 turns in a mile. Speedometers, odometers and traction systems are set up for a particular size, so changing to a tire with a different diameter changes what they read.
New to size codes? See how to read a tire size, or use the tire size comparison calculator to put 285/75R16 next to the size you have now.
Sizes close to 285/75R16
These common sizes are within 3% of the 32.8-inch diameter of the 285/75R16. A small difference keeps the speedometer near right, but width, load rating and fit can still differ, so check each one.
| Size | Diameter | vs 285/75R16 | Width | Tool |
|---|---|---|---|---|
| 285/70R17 | 32.7 in | -0.4% | 11.2 in (285 mm) | Compare |
| 275/60R20 | 33.0 in | +0.5% | 10.8 in (275 mm) | Compare |
| 265/70R18 | 32.6 in | -0.7% | 10.4 in (265 mm) | Compare |
| 285/65R18 | 32.6 in | -0.7% | 11.2 in (285 mm) | Compare |
| 275/70R18 | 33.2 in | +1.0% | 10.8 in (275 mm) | Compare |
| 305/55R20 | 33.2 in | +1.2% | 12.0 in (305 mm) | Compare |
| 295/70R17 | 33.3 in | +1.3% | 11.6 in (295 mm) | Compare |
| 285/55R20 | 32.3 in | -1.5% | 11.2 in (285 mm) | Compare |
Changing to or from 285/75R16
If you move from 285/70R17 to 285/75R16, the overall diameter changes by +0.4% and the speedometer reads accordingly. The speedometer correction is the new diameter divided by the old one, so with a diameter 32.8 in the actual speed is the displayed speed multiplied by 32.8 and divided by the old diameter. The odometer follows the same ratio.
- Check the door-jamb placard for the size your vehicle was built for.
- Confirm the load index and speed rating are at least what the placard asks for.
- Ask whether your wheel width suits a 285 mm tire.
- Check clearance at full steering lock and over bumps; this is a common place where a larger tire rubs.
285/75R16 FAQ
How many inches is a 285/75R16 tire?
A 285/75R16 tire is about 32.8 inches (834 mm) tall overall, 11.2 inches (285 mm) wide, and has a sidewall of 8.4 inches (214 mm).
What does 285/75R16 mean?
285 is the section width in millimetres, 75 means the sidewall is 75% of the width, R means radial construction and 16 is the rim diameter in inches.
How many revolutions per mile does a 285/75R16 make?
About 614 revolutions per mile (382 per kilometre), based on a circumference of 103.1 inches.
Will a 285/75R16 tire fit my vehicle?
The size code alone cannot tell. Fit depends on your wheel width and offset, suspension and fender clearance. Check your door-jamb placard for the approved sizes and ask a tire shop.