Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/75-15 | 32/11.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.06 (763.5) | 32.01 (813.16) | 1.96 (49.66) 6.5% |
| Width inches (mm) | 10.04 (255) | 11.5 (292) | 1.46 (37) 14.5% |
| Circum. inches (mm) | 94.43 (2398.61) | 100.58 (2554.62) | 6.14 (156.01) 6.5% |
| Sidewall Height inches (mm) | 7.53 (191.25) | 8.51 (216.08) | 0.98 (24.83) 13% |
| Revolutions per mile (km) | 670.95 (416.91) | 629.97 (391.45) | -40.98 (-25.46) -6.1% |
32/11.5-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.3 mph (34.28 km/h) |
| 25 mph (40.23 km/h) | 26.63 mph (42.85 km/h) |
| 30 mph (48.28 km/h) | 31.95 mph (51.42 km/h) |
| 35 mph (56.33 km/h) | 37.28 mph (59.99 km/h) |
| 40 mph (64.37 km/h) | 42.6 mph (68.56 km/h) |
| 45 mph (72.42 km/h) | 47.93 mph (77.13 km/h) |
| 50 mph (80.47 km/h) | 53.25 mph (85.7 km/h) |
| 55 mph (88.51 km/h) | 58.58 mph (94.27 km/h) |
| 60 mph (96.56 km/h) | 63.9 mph (102.84 km/h) |
| 65 mph (104.61 km/h) | 69.23 mph (111.41 km/h) |
| 70 mph (112.65 km/h) | 74.55 mph (119.98 km/h) |
| 75 mph (120.7 km/h) | 79.88 mph (128.55 km/h) |
| 80 mph (128.75 km/h) | 85.2 mph (137.12 km/h) |
| 85 mph (136.79 km/h) | 90.53 mph (145.69 km/h) |
| 90 mph (144.84 km/h) | 95.85 mph (154.26 km/h) |
| 95 mph (152.89 km/h) | 101.18 mph (162.83 km/h) |
| 100 mph (160.93 km/h) | 106.5 mph (171.4 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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