Steering Ratio Calculator

✖Steering Wheel Radius is the distance from the center of the steering wheel to its outer edge, affecting the vehicle's handling and maneuverability.ⓘ Steering Wheel Radius [R_sw]			+10% -10%
✖Pinion Pitch Circle Radius is the radius of the circle that passes through the pitch point of the pinion gear in a steering system.ⓘ Pinion Pitch Circle Radius [R_p]			+10% -10%

✖Steering Ratio is the ratio of the angle turned by the steering wheel to the angle turned by the wheels of a vehicle.ⓘ Steering Ratio [S_r]

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Steering Ratio Solution

STEP 0: Pre-Calculation Summary

Formula Used

Steering Ratio = Steering Wheel Radius/Pinion Pitch Circle Radius
S_r = R_sw/R_p
This formula uses 3 Variables

Variables Used

Steering Ratio - Steering Ratio is the ratio of the angle turned by the steering wheel to the angle turned by the wheels of a vehicle.
Steering Wheel Radius - (Measured in Meter) - Steering Wheel Radius is the distance from the center of the steering wheel to its outer edge, affecting the vehicle's handling and maneuverability.
Pinion Pitch Circle Radius - (Measured in Meter) - Pinion Pitch Circle Radius is the radius of the circle that passes through the pitch point of the pinion gear in a steering system.

STEP 1: Convert Input(s) to Base Unit

Steering Wheel Radius: 672 Millimeter --> 0.672 Meter (Check conversion here)
Pinion Pitch Circle Radius: 10.5 Millimeter --> 0.0105 Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

S_r = R_sw/R_p --> 0.672/0.0105

Evaluating ... ...

S_r = 64

STEP 3: Convert Result to Output's Unit

64 --> No Conversion Required

FINAL ANSWER

64 <-- Steering Ratio

(Calculation completed in 00.004 seconds)

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Home » Physics » Automobile » Front Axle and Steering » Steering System » Mechanical » Steering Parameters » Steering Ratio

Credits

Created by Syed Adnan

Ramaiah University of Applied Sciences (RUAS), bangalore

Syed Adnan has created this Calculator and 200+ more calculators!

Verified by Anshika Arya

National Institute Of Technology (NIT), Hamirpur

Anshika Arya has verified this Calculator and 2500+ more calculators!

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Steering Ratio Formula

LaTeX Go

Steering Ratio = Steering Wheel Radius/Pinion Pitch Circle Radius
S_r = R_sw/R_p

What is steering ratio?

Steering ratio is a ratio of the degrees of steering wheel angle input and degrees of road wheel toe angle change.

Steering ratio is a function of rack ratio (mm of rack travel per steering wheel revolution) and suspension geometry. The primary suspension geometry measure is steering lever arm length. Steering arm length is the shortest distance between the suspension steer axis and the steering rack attachment to the wheel carrier.

How to Calculate Steering Ratio?

Steering Ratio calculator uses Steering Ratio = Steering Wheel Radius/Pinion Pitch Circle Radius to calculate the Steering Ratio, Steering Ratio formula is defined as a measure of the ratio of the angle turned by the steering wheel to the angle turned by the wheels of a vehicle, which affects the handling and responsiveness of the vehicle, and is an important consideration in the design and engineering of vehicles. Steering Ratio is denoted by S_r symbol.

How to calculate Steering Ratio using this online calculator? To use this online calculator for Steering Ratio, enter Steering Wheel Radius (R_sw) & Pinion Pitch Circle Radius (R_p) and hit the calculate button. Here is how the Steering Ratio calculation can be explained with given input values -> 64 = 0.672/0.0105.

FAQ

What is Steering Ratio?

Steering Ratio formula is defined as a measure of the ratio of the angle turned by the steering wheel to the angle turned by the wheels of a vehicle, which affects the handling and responsiveness of the vehicle, and is an important consideration in the design and engineering of vehicles and is represented as S_r = R_sw/R_p or Steering Ratio = Steering Wheel Radius/Pinion Pitch Circle Radius. Steering Wheel Radius is the distance from the center of the steering wheel to its outer edge, affecting the vehicle's handling and maneuverability & Pinion Pitch Circle Radius is the radius of the circle that passes through the pitch point of the pinion gear in a steering system.

How to calculate Steering Ratio?

Steering Ratio formula is defined as a measure of the ratio of the angle turned by the steering wheel to the angle turned by the wheels of a vehicle, which affects the handling and responsiveness of the vehicle, and is an important consideration in the design and engineering of vehicles is calculated using Steering Ratio = Steering Wheel Radius/Pinion Pitch Circle Radius. To calculate Steering Ratio, you need Steering Wheel Radius (R_sw) & Pinion Pitch Circle Radius (R_p). With our tool, you need to enter the respective value for Steering Wheel Radius & Pinion Pitch Circle Radius and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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