Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 355/25-21 | 355/30-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.99 (710.9) | 27.39 (695.6) | -0.6 (-15.3) -2.2% |
| Width inches (mm) | 13.98 (355) | 13.98 (355) | 0 (0) 0% |
| Circum. inches (mm) | 87.93 (2233.36) | 86.04 (2185.29) | -1.89 (-48.07) -2.2% |
| Sidewall Height inches (mm) | 3.49 (88.75) | 4.19 (106.5) | 0.7 (17.75) 20% |
| Revolutions per mile (km) | 720.59 (447.76) | 736.44 (457.6) | 15.85 (9.85) 2.2% |
355/30-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.57 mph (31.49 km/h) |
| 25 mph (40.23 km/h) | 24.46 mph (39.37 km/h) |
| 30 mph (48.28 km/h) | 29.35 mph (47.24 km/h) |
| 35 mph (56.33 km/h) | 34.25 mph (55.11 km/h) |
| 40 mph (64.37 km/h) | 39.14 mph (62.99 km/h) |
| 45 mph (72.42 km/h) | 44.03 mph (70.86 km/h) |
| 50 mph (80.47 km/h) | 48.92 mph (78.74 km/h) |
| 55 mph (88.51 km/h) | 53.82 mph (86.61 km/h) |
| 60 mph (96.56 km/h) | 58.71 mph (94.48 km/h) |
| 65 mph (104.61 km/h) | 63.6 mph (102.36 km/h) |
| 70 mph (112.65 km/h) | 68.49 mph (110.23 km/h) |
| 75 mph (120.7 km/h) | 73.39 mph (118.1 km/h) |
| 80 mph (128.75 km/h) | 78.28 mph (125.98 km/h) |
| 85 mph (136.79 km/h) | 83.17 mph (133.85 km/h) |
| 90 mph (144.84 km/h) | 88.06 mph (141.72 km/h) |
| 95 mph (152.89 km/h) | 92.96 mph (149.6 km/h) |
| 100 mph (160.93 km/h) | 97.85 mph (157.47 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1874 | 2177 | 2345 | 2448 | 2560 | 2640 | 2727 | 2831 | 2975 | 3118 | 3278 | 3405 | 3637 | 3892 | 4091 | 4219 | 4291 | 4554 | 4921 | 5718 |
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