Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/75-13 | 215/75-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.93 (607.7) | 27.7 (703.5) | 3.77 (95.8) 15.8% |
| Width inches (mm) | 7.28 (185) | 8.46 (215) | 1.18 (30) 16.2% |
| Circum. inches (mm) | 75.16 (1909.15) | 87.01 (2210.11) | 11.85 (300.96) 15.8% |
| Sidewall Height inches (mm) | 5.46 (138.75) | 6.35 (161.25) | 0.89 (22.5) 16.2% |
| Revolutions per mile (km) | 842.97 (523.79) | 728.17 (452.47) | -114.79 (-71.33) -13.6% |
215/75-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.15 mph (37.26 km/h) |
| 25 mph (40.23 km/h) | 28.94 mph (46.58 km/h) |
| 30 mph (48.28 km/h) | 34.73 mph (55.89 km/h) |
| 35 mph (56.33 km/h) | 40.52 mph (65.21 km/h) |
| 40 mph (64.37 km/h) | 46.31 mph (74.52 km/h) |
| 45 mph (72.42 km/h) | 52.09 mph (83.84 km/h) |
| 50 mph (80.47 km/h) | 57.88 mph (93.15 km/h) |
| 55 mph (88.51 km/h) | 63.67 mph (102.47 km/h) |
| 60 mph (96.56 km/h) | 69.46 mph (111.78 km/h) |
| 65 mph (104.61 km/h) | 75.25 mph (121.1 km/h) |
| 70 mph (112.65 km/h) | 81.04 mph (130.41 km/h) |
| 75 mph (120.7 km/h) | 86.82 mph (139.73 km/h) |
| 80 mph (128.75 km/h) | 92.61 mph (149.04 km/h) |
| 85 mph (136.79 km/h) | 98.4 mph (158.36 km/h) |
| 90 mph (144.84 km/h) | 104.19 mph (167.67 km/h) |
| 95 mph (152.89 km/h) | 109.98 mph (176.99 km/h) |
| 100 mph (160.93 km/h) | 115.76 mph (186.31 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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