Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/60-18 | 275/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.1 (739.2) | 30.99 (787.2) | 1.89 (48) 6.5% |
| Width inches (mm) | 9.25 (235) | 10.83 (275) | 1.57 (40) 17% |
| Circum. inches (mm) | 91.43 (2322.27) | 97.36 (2473.06) | 5.94 (150.8) 6.5% |
| Sidewall Height inches (mm) | 5.55 (141) | 6.5 (165) | 0.94 (24) 17% |
| Revolutions per mile (km) | 693.01 (430.61) | 650.75 (404.36) | -42.26 (-26.26) -6.1% |
275/60-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.3 mph (34.28 km/h) |
| 25 mph (40.23 km/h) | 26.62 mph (42.85 km/h) |
| 30 mph (48.28 km/h) | 31.95 mph (51.42 km/h) |
| 35 mph (56.33 km/h) | 37.27 mph (59.98 km/h) |
| 40 mph (64.37 km/h) | 42.6 mph (68.55 km/h) |
| 45 mph (72.42 km/h) | 47.92 mph (77.12 km/h) |
| 50 mph (80.47 km/h) | 53.25 mph (85.69 km/h) |
| 55 mph (88.51 km/h) | 58.57 mph (94.26 km/h) |
| 60 mph (96.56 km/h) | 63.9 mph (102.83 km/h) |
| 65 mph (104.61 km/h) | 69.22 mph (111.4 km/h) |
| 70 mph (112.65 km/h) | 74.55 mph (119.97 km/h) |
| 75 mph (120.7 km/h) | 79.87 mph (128.54 km/h) |
| 80 mph (128.75 km/h) | 85.19 mph (137.11 km/h) |
| 85 mph (136.79 km/h) | 90.52 mph (145.68 km/h) |
| 90 mph (144.84 km/h) | 95.84 mph (154.25 km/h) |
| 95 mph (152.89 km/h) | 101.17 mph (162.82 km/h) |
| 100 mph (160.93 km/h) | 106.49 mph (171.39 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1656 | 1924 | 2072 | 2163 | 2262 | 2333 | 2410 | 2502 | 2629 | 2755 | 2896 | 3009 | 3213 | 3439 | 3615 | 3728 | 3791 | 4024 | 4348 | 5053 |
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