Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
32/10r17 vs 265/75r16 Tire Comparison Side By Side
  32/10-17 265/75-16 Difference
Diameter inches (mm) 32 (812.8) 31.65 (803.9) -0.35 (-8.9) -1.1%
Width inches (mm) 10 (254) 10.43 (265) 0.43 (11) 4.3%
Circum. inches (mm) 100.53 (2553.49) 99.43 (2525.53) -1.1 (-27.96) -1.1%
Sidewall Height inches (mm) 7.5 (190.5) 7.82 (198.75) 0.32 (8.25) 4.3%
Revolutions per mile (km) 630.25 (391.62) 637.23 (395.96) 6.98 (4.34) 1.1%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.78 mph (31.83 km/h)
25 mph (40.23 km/h)24.73 mph (39.79 km/h)
30 mph (48.28 km/h)29.67 mph (47.75 km/h)
35 mph (56.33 km/h)34.62 mph (55.71 km/h)
40 mph (64.37 km/h)39.56 mph (63.67 km/h)
45 mph (72.42 km/h)44.51 mph (71.63 km/h)
50 mph (80.47 km/h)49.45 mph (79.59 km/h)
55 mph (88.51 km/h)54.4 mph (87.54 km/h)
60 mph (96.56 km/h)59.34 mph (95.5 km/h)
65 mph (104.61 km/h)64.29 mph (103.46 km/h)
70 mph (112.65 km/h)69.23 mph (111.42 km/h)
75 mph (120.7 km/h)74.18 mph (119.38 km/h)
80 mph (128.75 km/h)79.12 mph (127.34 km/h)
85 mph (136.79 km/h)84.07 mph (135.3 km/h)
90 mph (144.84 km/h)89.01 mph (143.26 km/h)
95 mph (152.89 km/h)93.96 mph (151.21 km/h)
100 mph (160.93 km/h)98.91 mph (159.17 km/h)

Gear Ratio / RPMs for New Tire (@ 65 mph)
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
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