Rollover Stability Calculator

Rollover angle is the maximum side slope angle your vehicle can handle before tipping over. It's critical for off-road safety as it tells you the steepest side hill you can safely traverse. A higher rollover angle means better stability.

Lift height raises your vehicle's center of gravity, reducing stability and decreasing the rollover angle. Each inch of lift can reduce your safe operating angle by 2-4 degrees depending on other factors.

Load position has exponential impact on stability. A 100lb roof load affects stability much more than 300lbs of floor-level cargo because it raises the center of gravity significantly higher above the vehicle's pivot point.

Generally, 35° or higher is considered good stability, 25-35° is moderate (proceed with caution), and below 25° indicates high rollover risk requiring careful driving and route selection.

Larger tires slightly raise the center of gravity and change the effective track width, typically reducing stability by 1-2 degrees. However, they also provide better ground clearance and traction for navigating obstacles safely.

This calculator provides static rollover estimates. Dynamic factors like speed, terrain changes, and vehicle momentum significantly affect real-world stability. Always drive conservatively and consider professional training for extreme off-road conditions.

Wider track width (wheel spacers, wider axles), lower center of gravity (heavy items stored low), anti-roll bars, and avoiding high-mounted accessories all improve stability. Weight reduction also helps overall vehicle dynamics.

Most vehicles have a CG height between 20-28 inches from ground. Lifted vehicles, heavy roof loads, or tall body styles increase this significantly. Professional measurement or manufacturer data provides the most accuracy.