33.3" tall, 10.8" wide, 8.7" sidewall
A 275/80R16 tire is 33.3 inches (846 mm) tall and 10.8 inches wide. The sidewall is 80% of the width, 8.7 inches, on a 16-inch wheel, and the tire turns about 605 times per mile.
In flotation terms that is about 33.3x10.8R16, closest to the common 33x12.50R16 (33.0"). People often call it a 33-inch tire.
The size most often compared with it is 295/75R16, which is 0.1" taller (+0.3%). At an indicated 60 mph you would be doing 60.2 mph on it.
| Current | New | Difference |
|---|
| Shows | Actual speed |
|---|
Same 16" wheel, within 20 mm of width and 10 points of aspect ratio.
| Size | Diameter | Width | Sidewall | vs 275/80R16 | |
|---|---|---|---|---|---|
| 295/75R16 | 33.4" | 11.6" | 8.7" | +0.3% | |
| 255/85R16 | 33.1" | 10.0" | 8.5" | −0.8% | |
| 265/85R16 | 33.7" | 10.4" | 8.9" | +1.2% | |
| 285/75R16 | 32.8" | 11.2" | 8.4" | −1.5% | |
| 265/80R16 | 32.7" | 10.4" | 8.3" | −1.9% | |
| 285/80R16 | 34.0" | 11.2" | 9.0" | +1.9% | |
| 295/70R16 | 32.3" | 11.6" | 8.1" | −3.2% | |
| 275/75R16 | 32.2" | 10.8" | 8.1" | −3.2% | |
| 275/85R16 | 34.4" | 10.8" | 9.2" | +3.2% | |
| 255/80R16 | 32.1" | 10.0" | 8.0" | −3.8% |
Sizes within 2% of 33.3" on 18" or 17" wheels.
| Size | Diameter | Width | Sidewall | vs 275/80R16 | |
|---|---|---|---|---|---|
| 325/60R18 | 33.4" | 12.8" | 7.7" | +0.1% | |
| 295/70R17 | 33.3" | 11.6" | 8.1" | −0.2% | |
| 245/85R17 | 33.4" | 9.6" | 8.2" | +0.2% | |
| 275/70R18 | 33.2" | 10.8" | 7.6" | −0.5% | |
| 315/65R17 | 33.1" | 12.4" | 8.1" | −0.6% | |
| 295/65R18 | 33.1" | 11.6" | 7.5" | −0.7% |
Actual speed when the speedometer is calibrated for 275/80R16.
| Speedometer shows | on 295/75R16 | on 255/85R16 | on 265/85R16 |
|---|---|---|---|
| 30 mph | 30.1 mph | 29.8 mph | 30.4 mph |
| 45 mph | 45.1 mph | 44.7 mph | 45.6 mph |
| 60 mph | 60.2 mph | 59.5 mph | 60.7 mph |
| 70 mph | 70.2 mph | 69.5 mph | 70.9 mph |
33.3 inches (846 mm). The sidewall is 8.7 inches.
10.8 inches (275 mm) section width, measured sidewall to sidewall.
About 33.3x10.8R16; the closest common flotation size is 33x12.50R16 at 33.0".
295/75R16 is +0.3% in diameter, within the common 3% guideline. It is 0.8" wider.