Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/80-15 | 32/11.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.32 (821) | 32.01 (813.16) | -0.31 (-7.84) -1% |
| Width inches (mm) | 10.83 (275) | 11.5 (292) | 0.67 (17) 6.2% |
| Circum. inches (mm) | 101.55 (2579.25) | 100.58 (2554.62) | -0.97 (-24.63) -1% |
| Sidewall Height inches (mm) | 8.66 (220) | 8.51 (216.08) | -0.15 (-3.92) -1.8% |
| Revolutions per mile (km) | 623.96 (387.71) | 629.97 (391.45) | 6.02 (3.74) 1% |
32/11.5-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.81 mph (31.88 km/h) |
| 25 mph (40.23 km/h) | 24.76 mph (39.85 km/h) |
| 30 mph (48.28 km/h) | 29.71 mph (47.82 km/h) |
| 35 mph (56.33 km/h) | 34.67 mph (55.79 km/h) |
| 40 mph (64.37 km/h) | 39.62 mph (63.76 km/h) |
| 45 mph (72.42 km/h) | 44.57 mph (71.73 km/h) |
| 50 mph (80.47 km/h) | 49.52 mph (79.7 km/h) |
| 55 mph (88.51 km/h) | 54.47 mph (87.67 km/h) |
| 60 mph (96.56 km/h) | 59.43 mph (95.64 km/h) |
| 65 mph (104.61 km/h) | 64.38 mph (103.61 km/h) |
| 70 mph (112.65 km/h) | 69.33 mph (111.58 km/h) |
| 75 mph (120.7 km/h) | 74.28 mph (119.55 km/h) |
| 80 mph (128.75 km/h) | 79.24 mph (127.52 km/h) |
| 85 mph (136.79 km/h) | 84.19 mph (135.49 km/h) |
| 90 mph (144.84 km/h) | 89.14 mph (143.46 km/h) |
| 95 mph (152.89 km/h) | 94.09 mph (151.43 km/h) |
| 100 mph (160.93 km/h) | 99.05 mph (159.4 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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