Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/25-23 | 37/13.5-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.2 (741.7) | 37.01 (940.18) | 7.81 (198.48) 26.8% |
| Width inches (mm) | 12.4 (315) | 13.5 (343) | 1.1 (28) 8.9% |
| Circum. inches (mm) | 91.74 (2330.12) | 116.29 (2953.66) | 24.55 (623.54) 26.8% |
| Sidewall Height inches (mm) | 3.1 (78.75) | 8.51 (216.09) | 5.41 (137.34) 174.4% |
| Revolutions per mile (km) | 690.67 (429.16) | 544.86 (338.56) | -145.81 (-90.6) -21.1% |
37/13.5-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.35 mph (40.8 km/h) |
| 25 mph (40.23 km/h) | 31.69 mph (51 km/h) |
| 30 mph (48.28 km/h) | 38.03 mph (61.2 km/h) |
| 35 mph (56.33 km/h) | 44.37 mph (71.4 km/h) |
| 40 mph (64.37 km/h) | 50.7 mph (81.6 km/h) |
| 45 mph (72.42 km/h) | 57.04 mph (91.8 km/h) |
| 50 mph (80.47 km/h) | 63.38 mph (102 km/h) |
| 55 mph (88.51 km/h) | 69.72 mph (112.2 km/h) |
| 60 mph (96.56 km/h) | 76.06 mph (122.4 km/h) |
| 65 mph (104.61 km/h) | 82.39 mph (132.6 km/h) |
| 70 mph (112.65 km/h) | 88.73 mph (142.8 km/h) |
| 75 mph (120.7 km/h) | 95.07 mph (153 km/h) |
| 80 mph (128.75 km/h) | 101.41 mph (163.2 km/h) |
| 85 mph (136.79 km/h) | 107.75 mph (173.4 km/h) |
| 90 mph (144.84 km/h) | 114.08 mph (183.6 km/h) |
| 95 mph (152.89 km/h) | 120.42 mph (193.8 km/h) |
| 100 mph (160.93 km/h) | 126.76 mph (204 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1387 | 1611 | 1735 | 1811 | 1894 | 1953 | 2018 | 2095 | 2201 | 2307 | 2425 | 2519 | 2691 | 2879 | 3027 | 3121 | 3174 | 3369 | 3640 | 4231 |
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