Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 200/70-15 | 320/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.02 (661) | 32.64 (829) | 6.61 (168) 25.4% |
| Width inches (mm) | 7.87 (200) | 12.6 (320) | 4.72 (120) 60% |
| Circum. inches (mm) | 81.76 (2076.59) | 102.53 (2604.38) | 20.78 (527.79) 25.4% |
| Sidewall Height inches (mm) | 5.51 (140) | 8.82 (224) | 3.31 (84) 60% |
| Revolutions per mile (km) | 774.99 (481.56) | 617.94 (383.97) | -157.06 (-97.59) -20.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.08 mph (40.37 km/h) |
| 25 mph (40.23 km/h) | 31.35 mph (50.46 km/h) |
| 30 mph (48.28 km/h) | 37.62 mph (60.55 km/h) |
| 35 mph (56.33 km/h) | 43.9 mph (70.64 km/h) |
| 40 mph (64.37 km/h) | 50.17 mph (80.74 km/h) |
| 45 mph (72.42 km/h) | 56.44 mph (90.83 km/h) |
| 50 mph (80.47 km/h) | 62.71 mph (100.92 km/h) |
| 55 mph (88.51 km/h) | 68.98 mph (111.01 km/h) |
| 60 mph (96.56 km/h) | 75.25 mph (121.1 km/h) |
| 65 mph (104.61 km/h) | 81.52 mph (131.19 km/h) |
| 70 mph (112.65 km/h) | 87.79 mph (141.29 km/h) |
| 75 mph (120.7 km/h) | 94.06 mph (151.38 km/h) |
| 80 mph (128.75 km/h) | 100.33 mph (161.47 km/h) |
| 85 mph (136.79 km/h) | 106.6 mph (171.56 km/h) |
| 90 mph (144.84 km/h) | 112.87 mph (181.65 km/h) |
| 95 mph (152.89 km/h) | 119.15 mph (191.75 km/h) |
| 100 mph (160.93 km/h) | 125.42 mph (201.84 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1573 | 1827 | 1967 | 2054 | 2148 | 2215 | 2289 | 2376 | 2496 | 2616 | 2750 | 2857 | 3051 | 3266 | 3433 | 3540 | 3600 | 3821 | 4129 | 4798 |
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