Force Calculator
Calculate force, mass, or acceleration using Newton’s second law with flexible unit conversions.
Enter motion details
Result
Select what to calculate, enter the known values, and calculate the result.
What force means
Force is a push or pull that changes an object’s motion. It depends on both the object’s mass and its acceleration.
Newton’s second law
Newton’s second law states that net force equals mass multiplied by acceleration: F = ma.
Common applications
Force calculations are used in vehicle motion, structural engineering, machinery, sports, robotics, and physics experiments.
Frequently asked questions
What formula does this calculator use?
The calculator uses Newton’s second law: F = ma. It can rearrange the same formula to calculate mass or acceleration.
What is the SI unit of force?
The SI unit of force is the newton, written N. One newton equals one kilogram metre per second squared.
Can acceleration be negative?
Yes. A negative value usually indicates acceleration in the direction opposite to the chosen positive direction.
What is net force?
Net force is the combined result of all forces acting on an object, including forces acting in opposite directions.
Results are estimates generated locally in your browser from standard scientific formulas and reference data. They are for informational and educational purposes only and are not a substitute for laboratory validation or professional scientific analysis. VisionVix accepts no liability for decisions based on this tool's output.