Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/75-17 | 37/12.5-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 35.6 (904.3) | 37.03 (940.6) | 1.43 (36.3) 4% |
| Width inches (mm) | 12.4 (315) | 12.52 (318) | 0.12 (3) 1% |
| Circum. inches (mm) | 111.85 (2840.94) | 116.34 (2954.98) | 4.49 (114.04) 4% |
| Sidewall Height inches (mm) | 9.3 (236.25) | 10.02 (254.4) | 0.71 (18.15) 7.7% |
| Revolutions per mile (km) | 566.48 (352) | 544.62 (338.41) | -21.86 (-13.58) -3.9% |
37/12.5-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.8 mph (33.48 km/h) |
| 25 mph (40.23 km/h) | 26 mph (41.85 km/h) |
| 30 mph (48.28 km/h) | 31.2 mph (50.22 km/h) |
| 35 mph (56.33 km/h) | 36.4 mph (58.59 km/h) |
| 40 mph (64.37 km/h) | 41.61 mph (66.96 km/h) |
| 45 mph (72.42 km/h) | 46.81 mph (75.33 km/h) |
| 50 mph (80.47 km/h) | 52.01 mph (83.7 km/h) |
| 55 mph (88.51 km/h) | 57.21 mph (92.07 km/h) |
| 60 mph (96.56 km/h) | 62.41 mph (100.44 km/h) |
| 65 mph (104.61 km/h) | 67.61 mph (108.81 km/h) |
| 70 mph (112.65 km/h) | 72.81 mph (117.18 km/h) |
| 75 mph (120.7 km/h) | 78.01 mph (125.55 km/h) |
| 80 mph (128.75 km/h) | 83.21 mph (133.92 km/h) |
| 85 mph (136.79 km/h) | 88.41 mph (142.29 km/h) |
| 90 mph (144.84 km/h) | 93.61 mph (150.66 km/h) |
| 95 mph (152.89 km/h) | 98.81 mph (159.03 km/h) |
| 100 mph (160.93 km/h) | 104.01 mph (167.39 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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