Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 27/8.5-14 | 215/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.93 (683.92) | 26.85 (682) | -0.08 (-1.92) -0.3% |
| Width inches (mm) | 8.5 (216) | 8.46 (215) | -0.04 (-1) -0.5% |
| Circum. inches (mm) | 84.59 (2148.6) | 84.35 (2142.57) | -0.24 (-6.03) -0.3% |
| Sidewall Height inches (mm) | 6.46 (164.16) | 5.93 (150.5) | -0.54 (-13.66) -8.3% |
| Revolutions per mile (km) | 749.02 (465.42) | 751.13 (466.73) | 2.11 (1.31) 0.3% |
215/70-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.94 mph (32.1 km/h) |
| 25 mph (40.23 km/h) | 24.93 mph (40.12 km/h) |
| 30 mph (48.28 km/h) | 29.92 mph (48.14 km/h) |
| 35 mph (56.33 km/h) | 34.9 mph (56.17 km/h) |
| 40 mph (64.37 km/h) | 39.89 mph (64.19 km/h) |
| 45 mph (72.42 km/h) | 44.87 mph (72.22 km/h) |
| 50 mph (80.47 km/h) | 49.86 mph (80.24 km/h) |
| 55 mph (88.51 km/h) | 54.85 mph (88.27 km/h) |
| 60 mph (96.56 km/h) | 59.83 mph (96.29 km/h) |
| 65 mph (104.61 km/h) | 64.82 mph (104.31 km/h) |
| 70 mph (112.65 km/h) | 69.8 mph (112.34 km/h) |
| 75 mph (120.7 km/h) | 74.79 mph (120.36 km/h) |
| 80 mph (128.75 km/h) | 79.78 mph (128.39 km/h) |
| 85 mph (136.79 km/h) | 84.76 mph (136.41 km/h) |
| 90 mph (144.84 km/h) | 89.75 mph (144.43 km/h) |
| 95 mph (152.89 km/h) | 94.73 mph (152.46 km/h) |
| 100 mph (160.93 km/h) | 99.72 mph (160.48 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1911 | 2221 | 2391 | 2497 | 2611 | 2692 | 2782 | 2888 | 3034 | 3180 | 3343 | 3473 | 3709 | 3969 | 4173 | 4303 | 4376 | 4644 | 5019 | 5832 |
Better Fuel Economy Factory Ratios Increased Power
