Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/70-15 | 195/80-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.99 (584) | 27.28 (693) | 4.29 (109) 18.7% |
| Width inches (mm) | 5.71 (145) | 7.68 (195) | 1.97 (50) 34.5% |
| Circum. inches (mm) | 72.23 (1834.69) | 85.71 (2177.12) | 13.48 (342.43) 18.7% |
| Sidewall Height inches (mm) | 4 (101.5) | 6.14 (156) | 2.15 (54.5) 53.7% |
| Revolutions per mile (km) | 877.17 (545.05) | 739.21 (459.32) | -137.97 (-85.73) -15.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.73 mph (38.19 km/h) |
| 25 mph (40.23 km/h) | 29.67 mph (47.74 km/h) |
| 30 mph (48.28 km/h) | 35.6 mph (57.29 km/h) |
| 35 mph (56.33 km/h) | 41.53 mph (66.84 km/h) |
| 40 mph (64.37 km/h) | 47.47 mph (76.39 km/h) |
| 45 mph (72.42 km/h) | 53.4 mph (85.94 km/h) |
| 50 mph (80.47 km/h) | 59.33 mph (95.49 km/h) |
| 55 mph (88.51 km/h) | 65.27 mph (105.03 km/h) |
| 60 mph (96.56 km/h) | 71.2 mph (114.58 km/h) |
| 65 mph (104.61 km/h) | 77.13 mph (124.13 km/h) |
| 70 mph (112.65 km/h) | 83.07 mph (133.68 km/h) |
| 75 mph (120.7 km/h) | 89 mph (143.23 km/h) |
| 80 mph (128.75 km/h) | 94.93 mph (152.78 km/h) |
| 85 mph (136.79 km/h) | 100.86 mph (162.33 km/h) |
| 90 mph (144.84 km/h) | 106.8 mph (171.87 km/h) |
| 95 mph (152.89 km/h) | 112.73 mph (181.42 km/h) |
| 100 mph (160.93 km/h) | 118.66 mph (190.97 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1881 | 2185 | 2353 | 2457 | 2570 | 2650 | 2738 | 2842 | 2986 | 3130 | 3290 | 3418 | 3650 | 3906 | 4106 | 4235 | 4307 | 4571 | 4939 | 5739 |
Better Fuel Economy Factory Ratios Increased Power
