Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/70-15 | 255/60-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.99 (584) | 27.05 (687) | 4.06 (103) 17.6% |
| Width inches (mm) | 5.71 (145) | 10.04 (255) | 4.33 (110) 75.9% |
| Circum. inches (mm) | 72.23 (1834.69) | 84.97 (2158.27) | 12.74 (323.58) 17.6% |
| Sidewall Height inches (mm) | 4 (101.5) | 6.02 (153) | 2.03 (51.5) 50.7% |
| Revolutions per mile (km) | 877.17 (545.05) | 745.66 (463.33) | -131.51 (-81.72) -15% |
255/60-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.53 mph (37.86 km/h) |
| 25 mph (40.23 km/h) | 29.41 mph (47.33 km/h) |
| 30 mph (48.28 km/h) | 35.29 mph (56.8 km/h) |
| 35 mph (56.33 km/h) | 41.17 mph (66.26 km/h) |
| 40 mph (64.37 km/h) | 47.05 mph (75.73 km/h) |
| 45 mph (72.42 km/h) | 52.94 mph (85.19 km/h) |
| 50 mph (80.47 km/h) | 58.82 mph (94.66 km/h) |
| 55 mph (88.51 km/h) | 64.7 mph (104.13 km/h) |
| 60 mph (96.56 km/h) | 70.58 mph (113.59 km/h) |
| 65 mph (104.61 km/h) | 76.46 mph (123.06 km/h) |
| 70 mph (112.65 km/h) | 82.35 mph (132.52 km/h) |
| 75 mph (120.7 km/h) | 88.23 mph (141.99 km/h) |
| 80 mph (128.75 km/h) | 94.11 mph (151.45 km/h) |
| 85 mph (136.79 km/h) | 99.99 mph (160.92 km/h) |
| 90 mph (144.84 km/h) | 105.87 mph (170.39 km/h) |
| 95 mph (152.89 km/h) | 111.76 mph (179.85 km/h) |
| 100 mph (160.93 km/h) | 117.64 mph (189.32 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1898 | 2204 | 2374 | 2479 | 2592 | 2673 | 2762 | 2867 | 3012 | 3157 | 3319 | 3448 | 3682 | 3940 | 4142 | 4272 | 4344 | 4611 | 4982 | 5790 |
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