Speed Calculator

Calculate speed based on RPM, transmission ratios, rear end gearing, and tire size.

RESULTS

Tire Width (in): 10.4330708661
Tire Height (in): 24.7952755906
Circumference (in): 77.896655639163
For each tire rotation your vehicle will go 6.49 Feet

Gear Cruise Max
Gear 1 9.9 11.7
Gear 2 16.95 20.03
Gear 3 21.76 25.71
Gear 4 30.68 36.26
Gear 5 43.21 51.06
Gear 6 50.29 59.44
Gear 1 @ 2223 RPM
Gear 2 @ 1947 RPM
Gear 2 @ 2596 RPM
Gear 3 @ 2528 RPM
Gear 4 @ 2151 RPM
Gear 4 @ 2510 RPM
Gear 5 OD @ 2037 RPM
Gear 5 OD @ 2291 RPM
Gear 5 OD @ 2546 RPM
Gear 6 OD @ 2406 RPM
This graph shows the RPM points for speeds in increments of 5MPH. The curve itself does not accurately represent the RPM in between the data points.
Tire Size
265 75R22.5
265 75R22.5
265 75R22.5
-OR-

Select from one of these tire sizes

Transmission Gearing

Gear Ratios

-OR-

Select from one of these transmissions

Axle Ratio & Engine RPM

Rear Axle Ratio

-OR-

Select from one of these axle ratios

Engine RPM

Vehicle Details & Options
(OPTIONAL)
This should be the actual weight, not GVWR.

Options