Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/30-21 | 265/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.5 (698.4) | 27.3 (693.5) | -0.19 (-4.9) -0.7% |
| Width inches (mm) | 10.83 (275) | 10.43 (265) | -0.39 (-10) -3.6% |
| Circum. inches (mm) | 86.38 (2194.09) | 85.78 (2178.69) | -0.61 (-15.39) -0.7% |
| Sidewall Height inches (mm) | 3.25 (82.5) | 3.65 (92.75) | 0.4 (10.25) 12.4% |
| Revolutions per mile (km) | 733.49 (455.77) | 738.67 (458.99) | 5.18 (3.22) 0.7% |
265/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.86 mph (31.96 km/h) |
| 25 mph (40.23 km/h) | 24.82 mph (39.95 km/h) |
| 30 mph (48.28 km/h) | 29.79 mph (47.94 km/h) |
| 35 mph (56.33 km/h) | 34.75 mph (55.93 km/h) |
| 40 mph (64.37 km/h) | 39.72 mph (63.92 km/h) |
| 45 mph (72.42 km/h) | 44.68 mph (71.91 km/h) |
| 50 mph (80.47 km/h) | 49.65 mph (79.9 km/h) |
| 55 mph (88.51 km/h) | 54.61 mph (87.89 km/h) |
| 60 mph (96.56 km/h) | 59.58 mph (95.88 km/h) |
| 65 mph (104.61 km/h) | 64.54 mph (103.87 km/h) |
| 70 mph (112.65 km/h) | 69.51 mph (111.86 km/h) |
| 75 mph (120.7 km/h) | 74.47 mph (119.85 km/h) |
| 80 mph (128.75 km/h) | 79.44 mph (127.84 km/h) |
| 85 mph (136.79 km/h) | 84.4 mph (135.83 km/h) |
| 90 mph (144.84 km/h) | 89.37 mph (143.83 km/h) |
| 95 mph (152.89 km/h) | 94.33 mph (151.82 km/h) |
| 100 mph (160.93 km/h) | 99.3 mph (159.81 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1880 | 2184 | 2352 | 2456 | 2568 | 2648 | 2736 | 2840 | 2984 | 3128 | 3288 | 3416 | 3648 | 3904 | 4104 | 4232 | 4304 | 4567 | 4935 | 5735 |
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