36.3" tall, 11.6" wide, 8.1" sidewall
A 295/70R20 tire is 36.3 inches (921 mm) tall and 11.6 inches wide. The sidewall is 70% of the width, 8.1 inches, on a 20-inch wheel, and the tire turns about 556 times per mile.
In flotation terms that is about 36.3x11.6R20. People often call it a 36-inch tire.
The size most often compared with it is 275/75R20, which is 0.0" shorter (−0.1%). At an indicated 60 mph you would be doing 60.0 mph on it.
| Current | New | Difference |
|---|
| Shows | Actual speed |
|---|
Same 20" wheel, within 20 mm of width and 10 points of aspect ratio.
| Size | Diameter | Width | Sidewall | vs 295/70R20 | |
|---|---|---|---|---|---|
| 275/75R20 | 36.2" | 10.8" | 8.1" | −0.1% | |
| 315/65R20 | 36.1" | 12.4" | 8.1" | −0.4% | |
| 285/70R20 | 35.7" | 11.2" | 7.9" | −1.5% | |
| 305/65R20 | 35.6" | 12.0" | 7.8" | −1.8% | |
| 37x11.50R20 | 37.0" | 11.5" | 8.5" | +2.0% | |
| 275/70R20 | 35.2" | 10.8" | 7.6" | −3.0% | |
| 295/65R20 | 35.1" | 11.6" | 7.5" | −3.2% | |
| 35x11.50R20 | 35.0" | 11.5" | 7.5" | −3.5% | |
| 315/60R20 | 34.9" | 12.4" | 7.4" | −3.8% | |
| 285/65R20 | 34.6" | 11.2" | 7.3" | −4.6% |
Sizes within 2% of 36.3" on 18" or 22" wheels.
| Size | Diameter | Width | Sidewall | vs 295/70R20 | |
|---|---|---|---|---|---|
| 275/85R18 | 36.4" | 10.8" | 9.2" | +0.4% | |
| 275/65R22 | 36.1" | 10.8" | 7.0" | −0.5% | |
| 325/55R22 | 36.1" | 12.8" | 7.0" | −0.5% | |
| 255/70R22 | 36.1" | 10.0" | 7.0" | −0.6% | |
| 305/75R18 | 36.0" | 12.0" | 9.0" | −0.7% | |
| 285/80R18 | 36.0" | 11.2" | 9.0" | −0.8% |
Actual speed when the speedometer is calibrated for 295/70R20.
| Speedometer shows | on 275/75R20 | on 315/65R20 | on 285/70R20 |
|---|---|---|---|
| 30 mph | 30.0 mph | 29.9 mph | 29.5 mph |
| 45 mph | 45.0 mph | 44.8 mph | 44.3 mph |
| 60 mph | 60.0 mph | 59.8 mph | 59.1 mph |
| 70 mph | 70.0 mph | 69.7 mph | 68.9 mph |
36.3 inches (921 mm). The sidewall is 8.1 inches.
11.6 inches (295 mm) section width, measured sidewall to sidewall.
About 36.3x11.6R20.
275/75R20 is −0.1% in diameter, within the common 3% guideline. It is 0.8" narrower.