Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/85-14 | 215/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.38 (670.1) | 26.85 (682) | 0.47 (11.9) 1.8% |
| Width inches (mm) | 7.28 (185) | 8.46 (215) | 1.18 (30) 16.2% |
| Circum. inches (mm) | 82.88 (2105.18) | 84.35 (2142.57) | 1.47 (37.38) 1.8% |
| Sidewall Height inches (mm) | 6.19 (157.25) | 5.93 (150.5) | -0.27 (-6.75) -4.3% |
| Revolutions per mile (km) | 764.47 (475.02) | 751.13 (466.73) | -13.34 (-8.29) -1.7% |
215/70-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.36 mph (32.76 km/h) |
| 25 mph (40.23 km/h) | 25.44 mph (40.95 km/h) |
| 30 mph (48.28 km/h) | 30.53 mph (49.14 km/h) |
| 35 mph (56.33 km/h) | 35.62 mph (57.33 km/h) |
| 40 mph (64.37 km/h) | 40.71 mph (65.52 km/h) |
| 45 mph (72.42 km/h) | 45.8 mph (73.71 km/h) |
| 50 mph (80.47 km/h) | 50.89 mph (81.9 km/h) |
| 55 mph (88.51 km/h) | 55.98 mph (90.09 km/h) |
| 60 mph (96.56 km/h) | 61.07 mph (98.28 km/h) |
| 65 mph (104.61 km/h) | 66.15 mph (106.47 km/h) |
| 70 mph (112.65 km/h) | 71.24 mph (114.65 km/h) |
| 75 mph (120.7 km/h) | 76.33 mph (122.84 km/h) |
| 80 mph (128.75 km/h) | 81.42 mph (131.03 km/h) |
| 85 mph (136.79 km/h) | 86.51 mph (139.22 km/h) |
| 90 mph (144.84 km/h) | 91.6 mph (147.41 km/h) |
| 95 mph (152.89 km/h) | 96.69 mph (155.6 km/h) |
| 100 mph (160.93 km/h) | 101.78 mph (163.79 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
