Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 345/30-19 | 315/30-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.15 (689.6) | 26.44 (671.6) | -0.71 (-18) -2.6% |
| Width inches (mm) | 13.58 (345) | 12.4 (315) | -1.18 (-30) -8.7% |
| Circum. inches (mm) | 85.29 (2166.44) | 83.07 (2109.89) | -2.23 (-56.55) -2.6% |
| Sidewall Height inches (mm) | 4.07 (103.5) | 3.72 (94.5) | -0.35 (-9) -8.7% |
| Revolutions per mile (km) | 742.85 (461.59) | 762.76 (473.96) | 19.91 (12.37) 2.7% |
315/30-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.48 mph (31.35 km/h) |
| 25 mph (40.23 km/h) | 24.35 mph (39.18 km/h) |
| 30 mph (48.28 km/h) | 29.22 mph (47.02 km/h) |
| 35 mph (56.33 km/h) | 34.09 mph (54.86 km/h) |
| 40 mph (64.37 km/h) | 38.96 mph (62.69 km/h) |
| 45 mph (72.42 km/h) | 43.83 mph (70.53 km/h) |
| 50 mph (80.47 km/h) | 48.69 mph (78.37 km/h) |
| 55 mph (88.51 km/h) | 53.56 mph (86.2 km/h) |
| 60 mph (96.56 km/h) | 58.43 mph (94.04 km/h) |
| 65 mph (104.61 km/h) | 63.3 mph (101.88 km/h) |
| 70 mph (112.65 km/h) | 68.17 mph (109.71 km/h) |
| 75 mph (120.7 km/h) | 73.04 mph (117.55 km/h) |
| 80 mph (128.75 km/h) | 77.91 mph (125.39 km/h) |
| 85 mph (136.79 km/h) | 82.78 mph (133.22 km/h) |
| 90 mph (144.84 km/h) | 87.65 mph (141.06 km/h) |
| 95 mph (152.89 km/h) | 92.52 mph (148.9 km/h) |
| 100 mph (160.93 km/h) | 97.39 mph (156.73 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1941 | 2255 | 2428 | 2536 | 2651 | 2734 | 2825 | 2932 | 3081 | 3230 | 3395 | 3527 | 3767 | 4031 | 4237 | 4369 | 4444 | 4716 | 5096 | 5922 |
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