Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/70-17 | 37/12.5-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.75 (704.8) | 37.03 (940.6) | 9.28 (235.8) 33.5% |
| Width inches (mm) | 7.68 (195) | 12.52 (318) | 4.84 (123) 63.1% |
| Circum. inches (mm) | 87.17 (2214.19) | 116.34 (2954.98) | 29.16 (740.79) 33.5% |
| Sidewall Height inches (mm) | 5.37 (136.5) | 10.02 (254.4) | 4.64 (117.9) 86.4% |
| Revolutions per mile (km) | 726.83 (451.63) | 544.62 (338.41) | -182.21 (-113.22) -25.1% |
37/12.5-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 26.69 mph (42.96 km/h) |
| 25 mph (40.23 km/h) | 33.36 mph (53.69 km/h) |
| 30 mph (48.28 km/h) | 40.04 mph (64.43 km/h) |
| 35 mph (56.33 km/h) | 46.71 mph (75.17 km/h) |
| 40 mph (64.37 km/h) | 53.38 mph (85.91 km/h) |
| 45 mph (72.42 km/h) | 60.06 mph (96.65 km/h) |
| 50 mph (80.47 km/h) | 66.73 mph (107.39 km/h) |
| 55 mph (88.51 km/h) | 73.4 mph (118.13 km/h) |
| 60 mph (96.56 km/h) | 80.07 mph (128.87 km/h) |
| 65 mph (104.61 km/h) | 86.75 mph (139.61 km/h) |
| 70 mph (112.65 km/h) | 93.42 mph (150.34 km/h) |
| 75 mph (120.7 km/h) | 100.09 mph (161.08 km/h) |
| 80 mph (128.75 km/h) | 106.77 mph (171.82 km/h) |
| 85 mph (136.79 km/h) | 113.44 mph (182.56 km/h) |
| 90 mph (144.84 km/h) | 120.11 mph (193.3 km/h) |
| 95 mph (152.89 km/h) | 126.78 mph (204.04 km/h) |
| 100 mph (160.93 km/h) | 133.46 mph (214.78 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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