Force Calculator – F = ma

Calculate force from mass and acceleration using Newton's second law F = ma.

Solve for

Mass (kg)

Acceleration (m/s²)

How It Works

Enter mass (kg) and acceleration (m/s²). The calculator multiplies them to give force in Newtons. You can also solve for mass or acceleration by entering the other two values.

Formula

F = m × a

Frequently Asked Questions

What is Newton's second law?

Newton's second law states that force equals mass times acceleration: F = ma. A 10 kg object accelerating at 2 m/s² experiences 20 N of force.

What units does force use?

Force is measured in Newtons (N). 1 N = 1 kg·m/s².