Tire Size Calculator

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Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
240/50r16 vs 335/65r16 Tire Comparison Side By Side
  240/50-16 335/65-16 Difference
Diameter inches (mm) 25.45 (646.4) 33.15 (841.9) 7.7 (195.5) 30.2%
Width inches (mm) 9.45 (240) 13.19 (335) 3.74 (95) 39.6%
Circum. inches (mm) 79.95 (2030.73) 104.13 (2644.91) 24.18 (614.18) 30.2%
Sidewall Height inches (mm) 4.72 (120) 8.57 (217.75) 3.85 (97.75) 81.5%
Revolutions per mile (km) 792.5 (492.43) 608.47 (378.08) -184.03 (-114.35) -23.2%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)26.05 mph (41.92 km/h)
25 mph (40.23 km/h)32.56 mph (52.4 km/h)
30 mph (48.28 km/h)39.07 mph (62.88 km/h)
35 mph (56.33 km/h)45.59 mph (73.36 km/h)
40 mph (64.37 km/h)52.1 mph (83.84 km/h)
45 mph (72.42 km/h)58.61 mph (94.32 km/h)
50 mph (80.47 km/h)65.12 mph (104.8 km/h)
55 mph (88.51 km/h)71.63 mph (115.28 km/h)
60 mph (96.56 km/h)78.15 mph (125.77 km/h)
65 mph (104.61 km/h)84.66 mph (136.25 km/h)
70 mph (112.65 km/h)91.17 mph (146.73 km/h)
75 mph (120.7 km/h)97.68 mph (157.21 km/h)
80 mph (128.75 km/h)104.2 mph (167.69 km/h)
85 mph (136.79 km/h)110.71 mph (178.17 km/h)
90 mph (144.84 km/h)117.22 mph (188.65 km/h)
95 mph (152.89 km/h)123.73 mph (199.13 km/h)
100 mph (160.93 km/h)130.24 mph (209.61 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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