Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 29.5/10.5-15 | 32/11.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.51 (749.46) | 32.01 (813.16) | 2.51 (63.7) 8.5% |
| Width inches (mm) | 10.51 (267) | 11.5 (292) | 0.98 (25) 9.4% |
| Circum. inches (mm) | 92.7 (2354.5) | 100.58 (2554.62) | 7.88 (200.12) 8.5% |
| Sidewall Height inches (mm) | 7.25 (184.23) | 8.51 (216.08) | 1.25 (31.85) 17.3% |
| Revolutions per mile (km) | 683.52 (424.72) | 629.97 (391.45) | -53.54 (-33.27) -7.8% |
32/11.5-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.7 mph (34.92 km/h) |
| 25 mph (40.23 km/h) | 27.12 mph (43.65 km/h) |
| 30 mph (48.28 km/h) | 32.55 mph (52.38 km/h) |
| 35 mph (56.33 km/h) | 37.97 mph (61.11 km/h) |
| 40 mph (64.37 km/h) | 43.4 mph (69.85 km/h) |
| 45 mph (72.42 km/h) | 48.82 mph (78.58 km/h) |
| 50 mph (80.47 km/h) | 54.25 mph (87.31 km/h) |
| 55 mph (88.51 km/h) | 59.67 mph (96.04 km/h) |
| 60 mph (96.56 km/h) | 65.1 mph (104.77 km/h) |
| 65 mph (104.61 km/h) | 70.52 mph (113.5 km/h) |
| 70 mph (112.65 km/h) | 75.95 mph (122.23 km/h) |
| 75 mph (120.7 km/h) | 81.37 mph (130.96 km/h) |
| 80 mph (128.75 km/h) | 86.8 mph (139.69 km/h) |
| 85 mph (136.79 km/h) | 92.22 mph (148.42 km/h) |
| 90 mph (144.84 km/h) | 97.65 mph (157.15 km/h) |
| 95 mph (152.89 km/h) | 103.07 mph (165.88 km/h) |
| 100 mph (160.93 km/h) | 108.5 mph (174.61 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 |
Better Fuel Economy Factory Ratios Increased Power
