Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
196/65r15 vs 196/70r14 Tire Comparison Side By Side
  196/65-15 196/70-14 Difference
Diameter inches (mm) 25.03 (635.8) 24.8 (630) -0.23 (-5.8) -0.9%
Width inches (mm) 7.72 (196) 7.72 (196) 0 (0) 0%
Circum. inches (mm) 78.64 (1997.42) 77.92 (1979.2) -0.72 (-18.22) -0.9%
Sidewall Height inches (mm) 5.02 (127.4) 5.4 (137.2) 0.39 (9.8) 7.7%
Revolutions per mile (km) 805.71 (500.64) 813.13 (505.25) 7.42 (4.61) 0.9%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)19.82 mph (31.89 km/h)
25 mph (40.23 km/h)24.77 mph (39.87 km/h)
30 mph (48.28 km/h)29.73 mph (47.84 km/h)
35 mph (56.33 km/h)34.68 mph (55.81 km/h)
40 mph (64.37 km/h)39.64 mph (63.79 km/h)
45 mph (72.42 km/h)44.59 mph (71.76 km/h)
50 mph (80.47 km/h)49.54 mph (79.73 km/h)
55 mph (88.51 km/h)54.5 mph (87.71 km/h)
60 mph (96.56 km/h)59.45 mph (95.68 km/h)
65 mph (104.61 km/h)64.41 mph (103.65 km/h)
70 mph (112.65 km/h)69.36 mph (111.63 km/h)
75 mph (120.7 km/h)74.32 mph (119.6 km/h)
80 mph (128.75 km/h)79.27 mph (127.57 km/h)
85 mph (136.79 km/h)84.22 mph (135.55 km/h)
90 mph (144.84 km/h)89.18 mph (143.52 km/h)
95 mph (152.89 km/h)94.13 mph (151.49 km/h)
100 mph (160.93 km/h)99.09 mph (159.47 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
20692404258927032827291530113126328434433619376040154297451746584737502854336313
Better Fuel Economy Factory Ratios Increased Power

Most Popular 196/65-R15 Comparisons

To Top