Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/80-22.5 | 37/12.5-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 36.67 (931.5) | 37.03 (940.6) | 0.36 (9.1) 1% |
| Width inches (mm) | 8.86 (225) | 12.52 (318) | 3.66 (93) 41.3% |
| Circum. inches (mm) | 115.21 (2926.39) | 116.34 (2954.98) | 1.13 (28.59) 1% |
| Sidewall Height inches (mm) | 7.09 (180) | 10.02 (254.4) | 2.93 (74.4) 41.3% |
| Revolutions per mile (km) | 549.94 (341.72) | 544.62 (338.41) | -5.32 (-3.31) -1% |
37/12.5-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.2 mph (32.5 km/h) |
| 25 mph (40.23 km/h) | 25.24 mph (40.63 km/h) |
| 30 mph (48.28 km/h) | 30.29 mph (48.75 km/h) |
| 35 mph (56.33 km/h) | 35.34 mph (56.88 km/h) |
| 40 mph (64.37 km/h) | 40.39 mph (65 km/h) |
| 45 mph (72.42 km/h) | 45.44 mph (73.13 km/h) |
| 50 mph (80.47 km/h) | 50.49 mph (81.25 km/h) |
| 55 mph (88.51 km/h) | 55.54 mph (89.38 km/h) |
| 60 mph (96.56 km/h) | 60.59 mph (97.5 km/h) |
| 65 mph (104.61 km/h) | 65.63 mph (105.63 km/h) |
| 70 mph (112.65 km/h) | 70.68 mph (113.75 km/h) |
| 75 mph (120.7 km/h) | 75.73 mph (121.88 km/h) |
| 80 mph (128.75 km/h) | 80.78 mph (130.01 km/h) |
| 85 mph (136.79 km/h) | 85.83 mph (138.13 km/h) |
| 90 mph (144.84 km/h) | 90.88 mph (146.26 km/h) |
| 95 mph (152.89 km/h) | 95.93 mph (154.38 km/h) |
| 100 mph (160.93 km/h) | 100.98 mph (162.51 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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