Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/40-23 | 330/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.61 (828.2) | 36.19 (919.2) | 3.58 (91) 11% |
| Width inches (mm) | 12.01 (305) | 12.99 (330) | 0.98 (25) 8.2% |
| Circum. inches (mm) | 102.44 (2601.87) | 113.69 (2887.75) | 11.26 (285.88) 11% |
| Sidewall Height inches (mm) | 4.8 (122) | 9.09 (231) | 4.29 (109) 89.3% |
| Revolutions per mile (km) | 618.53 (384.34) | 557.3 (346.29) | -61.23 (-38.05) -9.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.2 mph (35.72 km/h) |
| 25 mph (40.23 km/h) | 27.75 mph (44.65 km/h) |
| 30 mph (48.28 km/h) | 33.3 mph (53.59 km/h) |
| 35 mph (56.33 km/h) | 38.85 mph (62.52 km/h) |
| 40 mph (64.37 km/h) | 44.4 mph (71.45 km/h) |
| 45 mph (72.42 km/h) | 49.94 mph (80.38 km/h) |
| 50 mph (80.47 km/h) | 55.49 mph (89.31 km/h) |
| 55 mph (88.51 km/h) | 61.04 mph (98.24 km/h) |
| 60 mph (96.56 km/h) | 66.59 mph (107.17 km/h) |
| 65 mph (104.61 km/h) | 72.14 mph (116.1 km/h) |
| 70 mph (112.65 km/h) | 77.69 mph (125.03 km/h) |
| 75 mph (120.7 km/h) | 83.24 mph (133.96 km/h) |
| 80 mph (128.75 km/h) | 88.79 mph (142.89 km/h) |
| 85 mph (136.79 km/h) | 94.34 mph (151.83 km/h) |
| 90 mph (144.84 km/h) | 99.89 mph (160.76 km/h) |
| 95 mph (152.89 km/h) | 105.44 mph (169.69 km/h) |
| 100 mph (160.93 km/h) | 110.99 mph (178.62 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1418 | 1648 | 1774 | 1853 | 1937 | 1998 | 2064 | 2142 | 2251 | 2360 | 2480 | 2577 | 2752 | 2945 | 3096 | 3193 | 3247 | 3446 | 3724 | 4327 |
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