Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/80-15 | 32/11.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.54 (725) | 32.01 (813.16) | 3.47 (88.16) 12.2% |
| Width inches (mm) | 8.46 (215) | 11.5 (292) | 3.03 (77) 35.8% |
| Circum. inches (mm) | 89.67 (2277.65) | 100.58 (2554.62) | 10.9 (276.96) 12.2% |
| Sidewall Height inches (mm) | 6.77 (172) | 8.51 (216.08) | 1.74 (44.08) 25.6% |
| Revolutions per mile (km) | 706.58 (439.05) | 629.97 (391.45) | -76.6 (-47.6) -10.8% |
32/11.5-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.43 mph (36.1 km/h) |
| 25 mph (40.23 km/h) | 28.04 mph (45.13 km/h) |
| 30 mph (48.28 km/h) | 33.65 mph (54.15 km/h) |
| 35 mph (56.33 km/h) | 39.26 mph (63.18 km/h) |
| 40 mph (64.37 km/h) | 44.86 mph (72.2 km/h) |
| 45 mph (72.42 km/h) | 50.47 mph (81.23 km/h) |
| 50 mph (80.47 km/h) | 56.08 mph (90.25 km/h) |
| 55 mph (88.51 km/h) | 61.69 mph (99.28 km/h) |
| 60 mph (96.56 km/h) | 67.3 mph (108.3 km/h) |
| 65 mph (104.61 km/h) | 72.9 mph (117.33 km/h) |
| 70 mph (112.65 km/h) | 78.51 mph (126.35 km/h) |
| 75 mph (120.7 km/h) | 84.12 mph (135.38 km/h) |
| 80 mph (128.75 km/h) | 89.73 mph (144.4 km/h) |
| 85 mph (136.79 km/h) | 95.34 mph (153.43 km/h) |
| 90 mph (144.84 km/h) | 100.94 mph (162.45 km/h) |
| 95 mph (152.89 km/h) | 106.55 mph (171.48 km/h) |
| 100 mph (160.93 km/h) | 112.16 mph (180.5 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1603 | 1862 | 2006 | 2094 | 2190 | 2258 | 2333 | 2422 | 2545 | 2667 | 2804 | 2913 | 3111 | 3329 | 3500 | 3609 | 3670 | 3895 | 4209 | 4891 |
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