Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/65-15 | 32/11.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.07 (738.5) | 32.01 (813.16) | 2.94 (74.66) 10.1% |
| Width inches (mm) | 10.83 (275) | 11.5 (292) | 0.67 (17) 6.2% |
| Circum. inches (mm) | 91.34 (2320.07) | 100.58 (2554.62) | 9.23 (234.55) 10.1% |
| Sidewall Height inches (mm) | 7.04 (178.75) | 8.51 (216.08) | 1.47 (37.33) 20.9% |
| Revolutions per mile (km) | 693.66 (431.02) | 629.97 (391.45) | -63.69 (-39.57) -9.2% |
32/11.5-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.02 mph (35.44 km/h) |
| 25 mph (40.23 km/h) | 27.53 mph (44.3 km/h) |
| 30 mph (48.28 km/h) | 33.03 mph (53.16 km/h) |
| 35 mph (56.33 km/h) | 38.54 mph (62.02 km/h) |
| 40 mph (64.37 km/h) | 44.04 mph (70.88 km/h) |
| 45 mph (72.42 km/h) | 49.55 mph (79.74 km/h) |
| 50 mph (80.47 km/h) | 55.05 mph (88.6 km/h) |
| 55 mph (88.51 km/h) | 60.56 mph (97.46 km/h) |
| 60 mph (96.56 km/h) | 66.07 mph (106.32 km/h) |
| 65 mph (104.61 km/h) | 71.57 mph (115.18 km/h) |
| 70 mph (112.65 km/h) | 77.08 mph (124.04 km/h) |
| 75 mph (120.7 km/h) | 82.58 mph (132.9 km/h) |
| 80 mph (128.75 km/h) | 88.09 mph (141.76 km/h) |
| 85 mph (136.79 km/h) | 93.59 mph (150.62 km/h) |
| 90 mph (144.84 km/h) | 99.1 mph (159.48 km/h) |
| 95 mph (152.89 km/h) | 104.6 mph (168.34 km/h) |
| 100 mph (160.93 km/h) | 110.11 mph (177.2 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1603 | 1862 | 2006 | 2094 | 2190 | 2258 | 2333 | 2422 | 2545 | 2667 | 2804 | 2913 | 3111 | 3329 | 3500 | 3609 | 3670 | 3895 | 4209 | 4891 |
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