Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/30-23 | 305/50-23 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.2 (767.2) | 35.01 (889.2) | 4.8 (122) 15.9% |
| Width inches (mm) | 12.01 (305) | 12.01 (305) | 0 (0) 0% |
| Circum. inches (mm) | 94.89 (2410.23) | 109.98 (2793.5) | 15.09 (383.27) 15.9% |
| Sidewall Height inches (mm) | 3.6 (91.5) | 6 (152.5) | 2.4 (61) 66.7% |
| Revolutions per mile (km) | 667.71 (414.9) | 576.1 (357.97) | -91.61 (-56.92) -13.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.18 mph (37.31 km/h) |
| 25 mph (40.23 km/h) | 28.98 mph (46.63 km/h) |
| 30 mph (48.28 km/h) | 34.77 mph (55.96 km/h) |
| 35 mph (56.33 km/h) | 40.57 mph (65.28 km/h) |
| 40 mph (64.37 km/h) | 46.36 mph (74.61 km/h) |
| 45 mph (72.42 km/h) | 52.16 mph (83.94 km/h) |
| 50 mph (80.47 km/h) | 57.95 mph (93.26 km/h) |
| 55 mph (88.51 km/h) | 63.75 mph (102.59 km/h) |
| 60 mph (96.56 km/h) | 69.54 mph (111.92 km/h) |
| 65 mph (104.61 km/h) | 75.34 mph (121.24 km/h) |
| 70 mph (112.65 km/h) | 81.13 mph (130.57 km/h) |
| 75 mph (120.7 km/h) | 86.93 mph (139.89 km/h) |
| 80 mph (128.75 km/h) | 92.72 mph (149.22 km/h) |
| 85 mph (136.79 km/h) | 98.52 mph (158.55 km/h) |
| 90 mph (144.84 km/h) | 104.31 mph (167.87 km/h) |
| 95 mph (152.89 km/h) | 110.11 mph (177.2 km/h) |
| 100 mph (160.93 km/h) | 115.9 mph (186.53 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1466 | 1703 | 1834 | 1915 | 2003 | 2065 | 2134 | 2215 | 2327 | 2439 | 2564 | 2664 | 2845 | 3044 | 3200 | 3300 | 3356 | 3562 | 3849 | 4473 |
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