Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 345/35-15 | 31/10.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.51 (622.5) | 30.98 (786.84) | 6.47 (164.34) 26.4% |
| Width inches (mm) | 13.58 (345) | 10.51 (267) | -3.07 (-78) -22.6% |
| Circum. inches (mm) | 76.99 (1955.64) | 97.32 (2471.93) | 20.33 (516.29) 26.4% |
| Sidewall Height inches (mm) | 4.75 (120.75) | 7.99 (202.92) | 3.24 (82.17) 68% |
| Revolutions per mile (km) | 822.92 (511.34) | 651.05 (404.54) | -171.88 (-106.8) -20.9% |
31/10.5-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.28 mph (40.68 km/h) |
| 25 mph (40.23 km/h) | 31.6 mph (50.86 km/h) |
| 30 mph (48.28 km/h) | 37.92 mph (61.03 km/h) |
| 35 mph (56.33 km/h) | 44.24 mph (71.2 km/h) |
| 40 mph (64.37 km/h) | 50.56 mph (81.37 km/h) |
| 45 mph (72.42 km/h) | 56.88 mph (91.54 km/h) |
| 50 mph (80.47 km/h) | 63.2 mph (101.71 km/h) |
| 55 mph (88.51 km/h) | 69.52 mph (111.88 km/h) |
| 60 mph (96.56 km/h) | 75.84 mph (122.05 km/h) |
| 65 mph (104.61 km/h) | 82.16 mph (132.22 km/h) |
| 70 mph (112.65 km/h) | 88.48 mph (142.4 km/h) |
| 75 mph (120.7 km/h) | 94.8 mph (152.57 km/h) |
| 80 mph (128.75 km/h) | 101.12 mph (162.74 km/h) |
| 85 mph (136.79 km/h) | 107.44 mph (172.91 km/h) |
| 90 mph (144.84 km/h) | 113.76 mph (183.08 km/h) |
| 95 mph (152.89 km/h) | 120.08 mph (193.25 km/h) |
| 100 mph (160.93 km/h) | 126.4 mph (203.42 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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