Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/25-21 | 255/30-22 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.41 (670.9) | 28.02 (711.8) | 1.61 (40.9) 6.1% |
| Width inches (mm) | 10.83 (275) | 10.04 (255) | -0.79 (-20) -7.3% |
| Circum. inches (mm) | 82.98 (2107.69) | 88.04 (2236.19) | 5.06 (128.49) 6.1% |
| Sidewall Height inches (mm) | 2.71 (68.75) | 3.01 (76.5) | 0.31 (7.75) 11.3% |
| Revolutions per mile (km) | 763.56 (474.45) | 719.68 (447.19) | -43.87 (-27.26) -5.7% |
255/30-22 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.22 mph (34.15 km/h) |
| 25 mph (40.23 km/h) | 26.52 mph (42.69 km/h) |
| 30 mph (48.28 km/h) | 31.83 mph (51.22 km/h) |
| 35 mph (56.33 km/h) | 37.13 mph (59.76 km/h) |
| 40 mph (64.37 km/h) | 42.44 mph (68.3 km/h) |
| 45 mph (72.42 km/h) | 47.74 mph (76.84 km/h) |
| 50 mph (80.47 km/h) | 53.05 mph (85.37 km/h) |
| 55 mph (88.51 km/h) | 58.35 mph (93.91 km/h) |
| 60 mph (96.56 km/h) | 63.66 mph (102.45 km/h) |
| 65 mph (104.61 km/h) | 68.96 mph (110.98 km/h) |
| 70 mph (112.65 km/h) | 74.27 mph (119.52 km/h) |
| 75 mph (120.7 km/h) | 79.57 mph (128.06 km/h) |
| 80 mph (128.75 km/h) | 84.88 mph (136.6 km/h) |
| 85 mph (136.79 km/h) | 90.18 mph (145.13 km/h) |
| 90 mph (144.84 km/h) | 95.49 mph (153.67 km/h) |
| 95 mph (152.89 km/h) | 100.79 mph (162.21 km/h) |
| 100 mph (160.93 km/h) | 106.1 mph (170.75 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1831 | 2128 | 2291 | 2393 | 2502 | 2580 | 2665 | 2767 | 2907 | 3047 | 3203 | 3328 | 3554 | 3803 | 3998 | 4123 | 4193 | 4450 | 4809 | 5588 |
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