Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/55-18 | 215/75-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.74 (704.7) | 27.7 (703.5) | -0.05 (-1.2) -0.2% |
| Width inches (mm) | 8.86 (225) | 8.46 (215) | -0.39 (-10) -4.4% |
| Circum. inches (mm) | 87.16 (2213.88) | 87.01 (2210.11) | -0.15 (-3.77) -0.2% |
| Sidewall Height inches (mm) | 4.87 (123.75) | 6.35 (161.25) | 1.48 (37.5) 30.3% |
| Revolutions per mile (km) | 726.93 (451.69) | 728.17 (452.47) | 1.24 (0.77) 0.2% |
215/75-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.97 mph (32.13 km/h) |
| 25 mph (40.23 km/h) | 24.96 mph (40.17 km/h) |
| 30 mph (48.28 km/h) | 29.95 mph (48.2 km/h) |
| 35 mph (56.33 km/h) | 34.94 mph (56.23 km/h) |
| 40 mph (64.37 km/h) | 39.93 mph (64.26 km/h) |
| 45 mph (72.42 km/h) | 44.92 mph (72.3 km/h) |
| 50 mph (80.47 km/h) | 49.91 mph (80.33 km/h) |
| 55 mph (88.51 km/h) | 54.91 mph (88.36 km/h) |
| 60 mph (96.56 km/h) | 59.9 mph (96.4 km/h) |
| 65 mph (104.61 km/h) | 64.89 mph (104.43 km/h) |
| 70 mph (112.65 km/h) | 69.88 mph (112.46 km/h) |
| 75 mph (120.7 km/h) | 74.87 mph (120.5 km/h) |
| 80 mph (128.75 km/h) | 79.86 mph (128.53 km/h) |
| 85 mph (136.79 km/h) | 84.86 mph (136.56 km/h) |
| 90 mph (144.84 km/h) | 89.85 mph (144.59 km/h) |
| 95 mph (152.89 km/h) | 94.84 mph (152.63 km/h) |
| 100 mph (160.93 km/h) | 99.83 mph (160.66 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1853 | 2153 | 2318 | 2421 | 2531 | 2610 | 2697 | 2799 | 2941 | 3083 | 3241 | 3367 | 3596 | 3848 | 4045 | 4171 | 4242 | 4503 | 4865 | 5654 |
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