Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
295/25r19 vs 345/35r15 Tire Comparison Side By Side
  295/25-19 345/35-15 Difference
Diameter inches (mm) 24.81 (630.1) 24.51 (622.5) -0.3 (-7.6) -1.2%
Width inches (mm) 11.61 (295) 13.58 (345) 1.97 (50) 16.9%
Circum. inches (mm) 77.93 (1979.52) 76.99 (1955.64) -0.94 (-23.88) -1.2%
Sidewall Height inches (mm) 2.9 (73.75) 4.75 (120.75) 1.85 (47) 63.7%
Revolutions per mile (km) 813 (505.17) 822.92 (511.34) 9.93 (6.17) 1.2%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.76 mph (31.8 km/h)
25 mph (40.23 km/h)24.7 mph (39.75 km/h)
30 mph (48.28 km/h)29.64 mph (47.7 km/h)
35 mph (56.33 km/h)34.58 mph (55.65 km/h)
40 mph (64.37 km/h)39.52 mph (63.6 km/h)
45 mph (72.42 km/h)44.46 mph (71.55 km/h)
50 mph (80.47 km/h)49.4 mph (79.5 km/h)
55 mph (88.51 km/h)54.34 mph (87.45 km/h)
60 mph (96.56 km/h)59.28 mph (95.4 km/h)
65 mph (104.61 km/h)64.22 mph (103.35 km/h)
70 mph (112.65 km/h)69.16 mph (111.3 km/h)
75 mph (120.7 km/h)74.1 mph (119.25 km/h)
80 mph (128.75 km/h)79.04 mph (127.19 km/h)
85 mph (136.79 km/h)83.97 mph (135.14 km/h)
90 mph (144.84 km/h)88.91 mph (143.09 km/h)
95 mph (152.89 km/h)93.85 mph (151.04 km/h)
100 mph (160.93 km/h)98.79 mph (158.99 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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