Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/40-21 | 295/40-21 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.98 (761.4) | 30.29 (769.4) | 0.31 (8) 1.1% |
| Width inches (mm) | 11.22 (285) | 11.61 (295) | 0.39 (10) 3.5% |
| Circum. inches (mm) | 94.17 (2392.01) | 95.16 (2417.14) | 0.99 (25.13) 1.1% |
| Sidewall Height inches (mm) | 4.49 (114) | 4.65 (118) | 0.16 (4) 3.5% |
| Revolutions per mile (km) | 672.8 (418.06) | 665.8 (413.71) | -7 (-4.35) -1% |
295/40-21 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.21 mph (32.53 km/h) |
| 25 mph (40.23 km/h) | 25.26 mph (40.66 km/h) |
| 30 mph (48.28 km/h) | 30.32 mph (48.79 km/h) |
| 35 mph (56.33 km/h) | 35.37 mph (56.92 km/h) |
| 40 mph (64.37 km/h) | 40.42 mph (65.05 km/h) |
| 45 mph (72.42 km/h) | 45.47 mph (73.18 km/h) |
| 50 mph (80.47 km/h) | 50.53 mph (81.31 km/h) |
| 55 mph (88.51 km/h) | 55.58 mph (89.44 km/h) |
| 60 mph (96.56 km/h) | 60.63 mph (97.58 km/h) |
| 65 mph (104.61 km/h) | 65.68 mph (105.71 km/h) |
| 70 mph (112.65 km/h) | 70.74 mph (113.84 km/h) |
| 75 mph (120.7 km/h) | 75.79 mph (121.97 km/h) |
| 80 mph (128.75 km/h) | 80.84 mph (130.1 km/h) |
| 85 mph (136.79 km/h) | 85.89 mph (138.23 km/h) |
| 90 mph (144.84 km/h) | 90.95 mph (146.36 km/h) |
| 95 mph (152.89 km/h) | 96 mph (154.49 km/h) |
| 100 mph (160.93 km/h) | 101.05 mph (162.63 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1694 | 1968 | 2120 | 2213 | 2314 | 2387 | 2466 | 2560 | 2689 | 2819 | 2963 | 3079 | 3288 | 3518 | 3699 | 3814 | 3879 | 4117 | 4449 | 5170 |
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