Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 29.5/10.5-15 | 215/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.51 (749.46) | 26.85 (682) | -2.66 (-67.46) -9% |
| Width inches (mm) | 10.51 (267) | 8.46 (215) | -2.05 (-52) -19.5% |
| Circum. inches (mm) | 92.7 (2354.5) | 84.35 (2142.57) | -8.34 (-211.93) -9% |
| Sidewall Height inches (mm) | 7.25 (184.23) | 5.93 (150.5) | -1.33 (-33.73) -18.3% |
| Revolutions per mile (km) | 683.52 (424.72) | 751.13 (466.73) | 67.61 (42.01) 9.9% |
215/70-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.2 mph (29.29 km/h) |
| 25 mph (40.23 km/h) | 22.75 mph (36.61 km/h) |
| 30 mph (48.28 km/h) | 27.3 mph (43.93 km/h) |
| 35 mph (56.33 km/h) | 31.85 mph (51.26 km/h) |
| 40 mph (64.37 km/h) | 36.4 mph (58.58 km/h) |
| 45 mph (72.42 km/h) | 40.95 mph (65.9 km/h) |
| 50 mph (80.47 km/h) | 45.5 mph (73.22 km/h) |
| 55 mph (88.51 km/h) | 50.05 mph (80.55 km/h) |
| 60 mph (96.56 km/h) | 54.6 mph (87.87 km/h) |
| 65 mph (104.61 km/h) | 59.15 mph (95.19 km/h) |
| 70 mph (112.65 km/h) | 63.7 mph (102.51 km/h) |
| 75 mph (120.7 km/h) | 68.25 mph (109.84 km/h) |
| 80 mph (128.75 km/h) | 72.8 mph (117.16 km/h) |
| 85 mph (136.79 km/h) | 77.35 mph (124.48 km/h) |
| 90 mph (144.84 km/h) | 81.9 mph (131.8 km/h) |
| 95 mph (152.89 km/h) | 86.45 mph (139.13 km/h) |
| 100 mph (160.93 km/h) | 91 mph (146.45 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
