Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 36/12.5-16.5 | 275/30-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 36.03 (915.18) | 26.5 (673) | -9.53 (-242.18) -26.5% |
| Width inches (mm) | 12.52 (318) | 10.83 (275) | -1.69 (-43) -13.5% |
| Circum. inches (mm) | 113.19 (2875.12) | 83.24 (2114.29) | -29.95 (-760.83) -26.5% |
| Sidewall Height inches (mm) | 9.77 (248.04) | 3.25 (82.5) | -6.52 (-165.54) -66.7% |
| Revolutions per mile (km) | 559.75 (347.81) | 761.17 (472.97) | 201.43 (125.16) 36% |
275/30-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 14.71 mph (23.67 km/h) |
| 25 mph (40.23 km/h) | 18.38 mph (29.59 km/h) |
| 30 mph (48.28 km/h) | 22.06 mph (35.5 km/h) |
| 35 mph (56.33 km/h) | 25.74 mph (41.42 km/h) |
| 40 mph (64.37 km/h) | 29.41 mph (47.34 km/h) |
| 45 mph (72.42 km/h) | 33.09 mph (53.26 km/h) |
| 50 mph (80.47 km/h) | 36.77 mph (59.17 km/h) |
| 55 mph (88.51 km/h) | 40.45 mph (65.09 km/h) |
| 60 mph (96.56 km/h) | 44.12 mph (71.01 km/h) |
| 65 mph (104.61 km/h) | 47.8 mph (76.93 km/h) |
| 70 mph (112.65 km/h) | 51.48 mph (82.84 km/h) |
| 75 mph (120.7 km/h) | 55.15 mph (88.76 km/h) |
| 80 mph (128.75 km/h) | 58.83 mph (94.68 km/h) |
| 85 mph (136.79 km/h) | 62.51 mph (100.6 km/h) |
| 90 mph (144.84 km/h) | 66.18 mph (106.51 km/h) |
| 95 mph (152.89 km/h) | 69.86 mph (112.43 km/h) |
| 100 mph (160.93 km/h) | 73.54 mph (118.35 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1937 | 2250 | 2423 | 2531 | 2646 | 2728 | 2819 | 2926 | 3075 | 3223 | 3388 | 3520 | 3759 | 4022 | 4229 | 4360 | 4435 | 4707 | 5086 | 5910 |
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