Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/45-15 | 195/40-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.91 (556.5) | 21.14 (537) | -0.77 (-19.5) -3.5% |
| Width inches (mm) | 7.68 (195) | 7.68 (195) | 0 (0) 0% |
| Circum. inches (mm) | 68.83 (1748.3) | 66.42 (1687.04) | -2.41 (-61.26) -3.5% |
| Sidewall Height inches (mm) | 3.45 (87.75) | 3.07 (78) | -0.38 (-9.75) -11.1% |
| Revolutions per mile (km) | 920.52 (571.98) | 953.95 (592.75) | 33.43 (20.77) 3.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.3 mph (31.06 km/h) |
| 25 mph (40.23 km/h) | 24.12 mph (38.82 km/h) |
| 30 mph (48.28 km/h) | 28.95 mph (46.59 km/h) |
| 35 mph (56.33 km/h) | 33.77 mph (54.35 km/h) |
| 40 mph (64.37 km/h) | 38.6 mph (62.12 km/h) |
| 45 mph (72.42 km/h) | 43.42 mph (69.88 km/h) |
| 50 mph (80.47 km/h) | 48.25 mph (77.65 km/h) |
| 55 mph (88.51 km/h) | 53.07 mph (85.41 km/h) |
| 60 mph (96.56 km/h) | 57.9 mph (93.18 km/h) |
| 65 mph (104.61 km/h) | 62.72 mph (100.94 km/h) |
| 70 mph (112.65 km/h) | 67.55 mph (108.71 km/h) |
| 75 mph (120.7 km/h) | 72.37 mph (116.47 km/h) |
| 80 mph (128.75 km/h) | 77.2 mph (124.24 km/h) |
| 85 mph (136.79 km/h) | 82.02 mph (132 km/h) |
| 90 mph (144.84 km/h) | 86.85 mph (139.77 km/h) |
| 95 mph (152.89 km/h) | 91.67 mph (147.53 km/h) |
| 100 mph (160.93 km/h) | 96.5 mph (155.3 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
