Mike "Wuzzy121". Rest in peace, brother

Tire Size Calculator

Tire Size Finder (optional):

Stock Sizes

  • 255/75-16

Plus Sizes

  • 255/75-16

Accepts P-Metric and Inches
/ R
/ R
245/75r15 vs 275/75r15 Tire Comparison Side By Side
  245/75-15 275/75-15 Difference
Diameter inches (mm) 29.47 (748.5) 31.24 (793.5) 1.77 (45) 6%
Width inches (mm) 9.65 (245) 10.83 (275) 1.18 (30) 12.2%
Circum. inches (mm) 92.58 (2351.48) 98.14 (2492.85) 5.57 (141.37) 6%
Sidewall Height inches (mm) 7.23 (183.75) 8.12 (206.25) 0.89 (22.5) 12.2%
Revolutions per mile (km) 684.4 (425.26) 645.58 (401.15) -38.81 (-24.12) -5.7%

Speedometer Difference

Speedo Reading Actual Speed
20 mph (32.19 km/h)21.2 mph (34.12 km/h)
25 mph (40.23 km/h)26.5 mph (42.65 km/h)
30 mph (48.28 km/h)31.8 mph (51.18 km/h)
35 mph (56.33 km/h)37.1 mph (59.71 km/h)
40 mph (64.37 km/h)42.4 mph (68.24 km/h)
45 mph (72.42 km/h)47.71 mph (76.77 km/h)
50 mph (80.47 km/h)53.01 mph (85.31 km/h)
55 mph (88.51 km/h)58.31 mph (93.84 km/h)
60 mph (96.56 km/h)63.61 mph (102.37 km/h)
65 mph (104.61 km/h)68.91 mph (110.9 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
16431909205521462244231423912482260827332873298531883412358636983761399243135013
Better Fuel Economy Factory Ratios Increased Power

Most Popular 245/75-R15 Comparisons


Copyright © 2014 Tacoma Forum. Tacoma World is not owned by, or affiliated with Toyota Motor Corporation.