Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/70-18 | 215/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.16 (842.2) | 26.85 (682) | -6.31 (-160.2) -19% |
| Width inches (mm) | 10.83 (275) | 8.46 (215) | -2.36 (-60) -21.8% |
| Circum. inches (mm) | 104.17 (2645.85) | 84.35 (2142.57) | -19.81 (-503.28) -19% |
| Sidewall Height inches (mm) | 7.58 (192.5) | 5.93 (150.5) | -1.65 (-42) -21.8% |
| Revolutions per mile (km) | 608.25 (377.95) | 751.13 (466.73) | 142.88 (88.78) 23.5% |
215/70-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.2 mph (26.06 km/h) |
| 25 mph (40.23 km/h) | 20.24 mph (32.58 km/h) |
| 30 mph (48.28 km/h) | 24.29 mph (39.1 km/h) |
| 35 mph (56.33 km/h) | 28.34 mph (45.61 km/h) |
| 40 mph (64.37 km/h) | 32.39 mph (52.13 km/h) |
| 45 mph (72.42 km/h) | 36.44 mph (58.65 km/h) |
| 50 mph (80.47 km/h) | 40.49 mph (65.16 km/h) |
| 55 mph (88.51 km/h) | 44.54 mph (71.68 km/h) |
| 60 mph (96.56 km/h) | 48.59 mph (78.19 km/h) |
| 65 mph (104.61 km/h) | 52.64 mph (84.71 km/h) |
| 70 mph (112.65 km/h) | 56.68 mph (91.23 km/h) |
| 75 mph (120.7 km/h) | 60.73 mph (97.74 km/h) |
| 80 mph (128.75 km/h) | 64.78 mph (104.26 km/h) |
| 85 mph (136.79 km/h) | 68.83 mph (110.77 km/h) |
| 90 mph (144.84 km/h) | 72.88 mph (117.29 km/h) |
| 95 mph (152.89 km/h) | 76.93 mph (123.81 km/h) |
| 100 mph (160.93 km/h) | 80.98 mph (130.32 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 |
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