🔄 Weight Transfer

Written and maintained by the PhDino author · Last reviewed 21 September 2026 · Checked against 1 independent reference calculation · how PhDino checks its numbers

How braking and acceleration shift a car's effective weight between its front and rear axles.

A car's weight doesn't sit evenly on all four tires the instant it brakes or accelerates — braking shifts weight forward onto the front tires, while accelerating shifts it rearward onto the rear tires. This happens because the car's center of gravity sits above the ground, so any horizontal force (braking or accelerating) creates a rotating tendency (torque) around the contact patches, which the suspension resists by compressing on the loaded end and extending on the other.

How much weight transfers depends on three things: how hard the car brakes or accelerates (in multiples of g), how high the center of gravity sits above the ground, and how long the wheelbase is. A higher CG or a shorter wheelbase both increase weight transfer for the same braking or acceleration force — which is exactly why lowering a car's center of gravity is one of the most effective ways to improve its handling balance under braking and acceleration.

Key formula

Weight transfer = acceleration (g) × vehicle weight × (CG height ÷ wheelbase)

Notes & limitations

• This calculates longitudinal (front-rear) weight transfer only — lateral (side-to-side) weight transfer during cornering is a related but separate calculation, driven by track width and cornering g instead of wheelbase and braking/acceleration g.
• More weight on the front tires under braking is exactly why front brakes do more of the stopping work than rear brakes on most cars, and why front tires wear faster under hard braking — the extra load also gives them extra grip to use for stopping.