Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/65-17 | 37/12.5-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.56 (776.3) | 37.03 (940.6) | 6.47 (164.3) 21.2% |
| Width inches (mm) | 10.43 (265) | 12.52 (318) | 2.09 (53) 20% |
| Circum. inches (mm) | 96.02 (2438.82) | 116.34 (2954.98) | 20.32 (516.16) 21.2% |
| Sidewall Height inches (mm) | 6.78 (172.25) | 10.02 (254.4) | 3.23 (82.15) 47.7% |
| Revolutions per mile (km) | 659.89 (410.03) | 544.62 (338.41) | -115.27 (-71.62) -17.5% |
37/12.5-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.23 mph (39 km/h) |
| 25 mph (40.23 km/h) | 30.29 mph (48.75 km/h) |
| 30 mph (48.28 km/h) | 36.35 mph (58.5 km/h) |
| 35 mph (56.33 km/h) | 42.41 mph (68.25 km/h) |
| 40 mph (64.37 km/h) | 48.47 mph (78 km/h) |
| 45 mph (72.42 km/h) | 54.52 mph (87.75 km/h) |
| 50 mph (80.47 km/h) | 60.58 mph (97.5 km/h) |
| 55 mph (88.51 km/h) | 66.64 mph (107.25 km/h) |
| 60 mph (96.56 km/h) | 72.7 mph (117 km/h) |
| 65 mph (104.61 km/h) | 78.76 mph (126.75 km/h) |
| 70 mph (112.65 km/h) | 84.82 mph (136.5 km/h) |
| 75 mph (120.7 km/h) | 90.87 mph (146.25 km/h) |
| 80 mph (128.75 km/h) | 96.93 mph (156 km/h) |
| 85 mph (136.79 km/h) | 102.99 mph (165.75 km/h) |
| 90 mph (144.84 km/h) | 109.05 mph (175.5 km/h) |
| 95 mph (152.89 km/h) | 115.11 mph (185.25 km/h) |
| 100 mph (160.93 km/h) | 121.16 mph (195 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1386 | 1610 | 1734 | 1811 | 1893 | 1952 | 2017 | 2094 | 2200 | 2306 | 2424 | 2518 | 2689 | 2878 | 3026 | 3120 | 3173 | 3368 | 3639 | 4229 |
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