Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 220/60-16 | 31/10.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.39 (670.4) | 30.98 (786.84) | 4.58 (116.44) 17.4% |
| Width inches (mm) | 8.66 (220) | 10.51 (267) | 1.85 (47) 21.4% |
| Circum. inches (mm) | 82.92 (2106.12) | 97.32 (2471.93) | 14.4 (365.81) 17.4% |
| Sidewall Height inches (mm) | 5.2 (132) | 7.99 (202.92) | 2.79 (70.92) 53.7% |
| Revolutions per mile (km) | 764.13 (474.81) | 651.05 (404.54) | -113.08 (-70.26) -14.8% |
31/10.5-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.47 mph (37.78 km/h) |
| 25 mph (40.23 km/h) | 29.34 mph (47.22 km/h) |
| 30 mph (48.28 km/h) | 35.21 mph (56.67 km/h) |
| 35 mph (56.33 km/h) | 41.08 mph (66.11 km/h) |
| 40 mph (64.37 km/h) | 46.95 mph (75.55 km/h) |
| 45 mph (72.42 km/h) | 52.82 mph (85 km/h) |
| 50 mph (80.47 km/h) | 58.68 mph (94.44 km/h) |
| 55 mph (88.51 km/h) | 64.55 mph (103.89 km/h) |
| 60 mph (96.56 km/h) | 70.42 mph (113.33 km/h) |
| 65 mph (104.61 km/h) | 76.29 mph (122.78 km/h) |
| 70 mph (112.65 km/h) | 82.16 mph (132.22 km/h) |
| 75 mph (120.7 km/h) | 88.03 mph (141.67 km/h) |
| 80 mph (128.75 km/h) | 93.89 mph (151.11 km/h) |
| 85 mph (136.79 km/h) | 99.76 mph (160.55 km/h) |
| 90 mph (144.84 km/h) | 105.63 mph (170 km/h) |
| 95 mph (152.89 km/h) | 111.5 mph (179.44 km/h) |
| 100 mph (160.93 km/h) | 117.37 mph (188.89 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1657 | 1925 | 2073 | 2164 | 2263 | 2334 | 2411 | 2503 | 2630 | 2757 | 2898 | 3010 | 3215 | 3440 | 3617 | 3730 | 3793 | 4026 | 4350 | 5055 |
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