Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 32/11.5-15 | 235/75-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.01 (813.16) | 28.88 (733.5) | -3.14 (-79.66) -9.8% |
| Width inches (mm) | 11.5 (292) | 9.25 (235) | -2.24 (-57) -19.5% |
| Circum. inches (mm) | 100.58 (2554.62) | 90.72 (2304.36) | -9.85 (-250.26) -9.8% |
| Sidewall Height inches (mm) | 8.51 (216.08) | 6.94 (176.25) | -1.57 (-39.83) -18.4% |
| Revolutions per mile (km) | 629.97 (391.45) | 698.39 (433.96) | 68.42 (42.51) 10.9% |
235/75-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.04 mph (29.03 km/h) |
| 25 mph (40.23 km/h) | 22.55 mph (36.29 km/h) |
| 30 mph (48.28 km/h) | 27.06 mph (43.55 km/h) |
| 35 mph (56.33 km/h) | 31.57 mph (50.81 km/h) |
| 40 mph (64.37 km/h) | 36.08 mph (58.07 km/h) |
| 45 mph (72.42 km/h) | 40.59 mph (65.33 km/h) |
| 50 mph (80.47 km/h) | 45.1 mph (72.58 km/h) |
| 55 mph (88.51 km/h) | 49.61 mph (79.84 km/h) |
| 60 mph (96.56 km/h) | 54.12 mph (87.1 km/h) |
| 65 mph (104.61 km/h) | 58.63 mph (94.36 km/h) |
| 70 mph (112.65 km/h) | 63.14 mph (101.62 km/h) |
| 75 mph (120.7 km/h) | 67.65 mph (108.88 km/h) |
| 80 mph (128.75 km/h) | 72.16 mph (116.14 km/h) |
| 85 mph (136.79 km/h) | 76.67 mph (123.39 km/h) |
| 90 mph (144.84 km/h) | 81.18 mph (130.65 km/h) |
| 95 mph (152.89 km/h) | 85.69 mph (137.91 km/h) |
| 100 mph (160.93 km/h) | 90.2 mph (145.17 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1777 | 2065 | 2223 | 2322 | 2428 | 2503 | 2586 | 2685 | 2821 | 2957 | 3108 | 3229 | 3449 | 3691 | 3880 | 4001 | 4069 | 4318 | 4666 | 5423 |
Better Fuel Economy Factory Ratios Increased Power
