Cornering Force Calculator

Cornering Force (or Side Force) is the lateral force produced by an object when turning, typically associated with the turning of a motor vehicle. Cornering Force is most commonly associated with motor sports including Formula 1 Racing and motorbike racing. Understnading the Cornering force allows us to calculate the maximum speed acheiveable for a vehicle transiting a corner of bend using quantified metrics including the radius and slope of the surface when considering the mass and velocity of the vehicle in motion.

Side Force Calculator
Cornering Force Calculator Results
The Static Friction (sf) is N
The Total Net Force (tnf) is N
The Maximum Speed (m) is
Cornering Force Static Friction Formula and Calculations
sf = f × m × g × sin(s) × 100
sf = × × × sin() × 100
sf = × × × × 100
sf =
Cornering Force Total Net Force Formula and Calculations
tnf = f × m × g × sin(s) + m × g × cos(s) × 100
tnf = × × × sin() + × × cos() × 100
tnf = × × × + × × × 100
tnf = + × 100
tnf = × 100
tnf =
Cornering Force Maximum Speed Formula and Calculations
m = √f × m × g × sin(s) + m × g × cos(s) × r/m
m = √ × × × sin() + × × cos() × /
m = √ × × × + × × × /
m = √ + × /
m = √ × /
m = √/
m = √
m =
Cornering Force Calculator Input Values
Static Friction Coefficient (f) is
Gravity Accelaration (g) is
Mass of Vehicle (m) is
Radius (r) is
Slope of the Road (s) is

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Cornering Force (or Side Force) is the lateral force produced by an object when turning, typically associated with the turning of a motor vehicle. Cornering Force is most commonly associated with motor sports.

Welcome to the Cornering Force Calculator tutorial. In this tutorial, we will discuss the concept of cornering force in vehicle dynamics and how it is calculated. Cornering force is a critical aspect of vehicle performance and handling, particularly in situations where vehicles need to negotiate turns or curves. Understanding and quantifying the cornering force helps engineers design and optimize vehicle suspension systems, tires, and overall stability.

Interesting Facts about Cornering Force

  • The cornering force is the force that acts laterally on a vehicle when it is turning. It is generated between the tires and the road surface and is responsible for maintaining the vehicle's trajectory during cornering.
  • Cornering force is influenced by various factors, including the vehicle's weight distribution, tire characteristics, suspension geometry, and road conditions.
  • High-performance sports cars and racing vehicles are designed to generate significant cornering forces to achieve better handling and grip during high-speed cornering maneuvers.
  • The cornering force is proportional to the tire's coefficient of friction with the road surface and the vehicle's acceleration during cornering.
  • Excessive cornering force can lead to tire slip, loss of control, and potential accidents. Balancing the cornering force with other vehicle dynamics parameters is crucial for safe and efficient handling.

Formula for Cornering Force

The formula for calculating the cornering force is as follows:

Cornering Force = (Vehicle Mass × Lateral Acceleration) / Effective Tire Radius


  • Vehicle Mass: The mass of the vehicle, typically measured in kilograms (kg) or pounds (lbs).
  • Lateral Acceleration: The acceleration experienced by the vehicle in the lateral direction during cornering, measured in meters per second squared (m/s2) or gravitational units (g).
  • Effective Tire Radius: The effective radius of the tire, which represents the distance between the tire's center of contact with the road surface and the center of the tire. It is typically measured in meters (m) or inches (in).

The cornering force formula can be derived from the principles of Newton's second law of motion and the relationship between force, mass, and acceleration. It indicates that the cornering force is directly proportional to the vehicle's mass and the lateral acceleration it experiences during cornering. The force is inversely proportional to the effective tire radius, which accounts for the tire's grip and the leverage it has on the vehicle's motion.

Example: Cornering Force Calculation

Let's consider an example to demonstrate the calculation of cornering force. Suppose we have a sports car with a mass of 1,500 kilograms (kg). During a cornering maneuver, the car experiences a lateral acceleration of 2.5 m/s2. The effective tire radius is measured to be 0.35 meters (m).

Using the cornering force formula, we can calculate:

Cornering Force = (1,500 kg × 2.5 m/s2) / 0.35 m = 10,714.29 N

Therefore, the cornering force exerted on the car is approximately 10,714.29 Newtons (N).

Real-Life Application: Vehicle Dynamics and Handling

The calculation of cornering force plays a crucial role in vehicle dynamics and handling. Engineers use this information to optimize various aspects of vehicle design and performance, including:

  • Suspension Design: By understanding the cornering force, engineers can design suspension systems that provide appropriate stiffness and damping characteristics. This helps maintain tire contact with the road surface, optimize grip, and enhance stability during cornering.
  • Tire Selection and Design: Tire manufacturers use cornering force data to develop tires with specific tread patterns, compounds, and sidewall stiffness to maximize grip and handling performance during cornering maneuvers.
  • Vehicle Stability Control Systems: Modern vehicles are equipped with electronic stability control systems that utilize cornering force measurements to monitor vehicle behavior and intervene when necessary to prevent loss of control or skidding.
  • Performance and Racing Applications: In motorsports and high-performance vehicle development, engineers aim to maximize cornering forces to achieve faster lap times, improved handling, and enhanced driver confidence.

By accurately calculating and analyzing cornering forces, engineers can fine-tune vehicle characteristics to achieve the desired balance between performance, safety, and comfort.


The cornering force calculator provides a valuable tool for engineers and automotive enthusiasts to understand and quantify the lateral forces acting on a vehicle during cornering. By considering factors such as vehicle mass, lateral acceleration, and effective tire radius, the calculator helps optimize suspension systems, tire selection, and overall vehicle dynamics for improved handling, safety, and performance. Understanding cornering forces is essential in various industries, including automotive engineering, motorsports, and vehicle safety. It allows for the development of vehicles that offer precise control, enhanced stability, and an exhilarating driving experience.