Enter the wheelbase length and the turning angle of the front wheels into the calculator to determine the turning radius.

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## Turning Radius Formula

The following formula is used to calculate the turning radius of a car.

TR = WB/tan(a)

- Where TR is the turning radius
- a is the angle of the turn
- WB is the wheelbase (distance between centers of the front and back wheels)

This formula assumes a perfect theoretical turning scenario. In real-world situations, this turning radius would vary depending on wheel tilt, friction, and many other factors.

## Turning Radius Definition

**What is a turning radius? **A turning radius is a radius at which a car will rotate, or turn, given a certain wheelbase length and an angle of turn of the wheels.

## Example Problem

How to calculate a turning radius?

**First, determine the wheel base.**This is the distance from the centers of the front and back wheels. For this example, the wheelbase is found to be 5 ft.

**Next, determine the turn angle.**This is the angle at which the front wheels are turned from their neutral position. in this problem, the angle of turn is 10 degrees.

**Finally, calculate the turn radius.**Using the formula, the turn radius is found to be: 5/tan(10)= 28.356 ft.

## FAQ

**What is a good turning radius? **

Most common cars have a turning radius of 35′ so anything smaller than that would be considered good. This is the turning radius of the car assuming the wheels are turned as much as possible.

**Do bigger tires affect the turning radius?**

Typically larger wheels will increase the turning radius of a vehicle to more wheel tilt during turning.

**Is a smaller or larger turning radius better? **

A smaller turning radius is better for handling and cars that want to perform well on a track will want to try to decrease the turning radius as much as possible.

**What is the turning radius?**

The turning radius is the minimum radius of the path that a vehicle must follow in order to make a turn without skidding or losing control. It is defined as the distance from the center of the turning circle to the center of the vehicle.

**How is turning radius calculated?**

The turning radius can be calculated by dividing the wheelbase of the vehicle (the distance between the front and rear axles) by the tangent of the angle of the turn. The formula is: R = (WB) / tan (Θ), where R is the turning radius, WB is the wheelbase, and Θ is the angle of the turn.

**What is the relationship between speed and turning radius?**

The relationship between speed and turning radius is inversely proportional, meaning that as speed increases, the turning radius decreases. This is because at higher speeds, the vehicle must follow a tighter turning radius in order to maintain stability and control.

**Why is turning radius important in vehicle design?**

Turning radius is an important factor in vehicle design because it affects the maneuverability of the vehicle. A smaller turning radius allows a vehicle to make tighter turns, which can be useful in tight spaces, while a larger turning radius can make it more difficult to maneuver in tight spaces.

**How does the weight of a vehicle affect its turning radius?**

The weight of a vehicle affects its turning radius by increasing the forces acting on the tires during a turn. As a result, a heavier vehicle will require a larger turning radius in order to maintain stability and control.

**How does the width of a vehicle affect its turning radius?**

The width of a vehicle affects its turning radius by increasing the distance between the tires, which increases the forces acting on the tires during a turn. As a result, a wider vehicle will require a larger turning radius in order to maintain stability and control.

**What is the relationship between tire size and turning radius?**

The relationship between tire size and turning radius is indirect. Larger tires can increase the stability of a vehicle during a turn, but they also increase the distance between the tires, which can result in a larger turning radius.

**How does the suspension of a vehicle affect its turning radius?**

The suspension of a vehicle affects its turning radius by changing the way the vehicle handles during a turn. A softer suspension can increase the stability of the vehicle during a turn, but can also increase the turning radius. A stiffer suspension can reduce the turning radius, but can also decrease the stability of the vehicle during a turn.

**How does the type of vehicle affect its turning radius?**

The type of vehicle can greatly affect its turning radius. For example, larger vehicles like buses and trucks typically have a larger turning radius than smaller vehicles like cars, due to their increased length and width.

**How is turning radius measured?**

Turning radius can be measured by observing the path that a vehicle follows during a turn and measuring the distance from the center of the turning circle to the center of the vehicle. This measurement can be made using a variety of tools, including laser measuring devices or tape measures.