💪 Force Calculator (F=ma)
Calculate force using Newton's Second Law
Enter any two values to calculate the third (F = m × a).
How Force Calculation Works
Formula
F = m × a (Newton's Second Law)
- 1Enter any two of the three values: force, mass, or acceleration.
- 2The calculator solves for the missing variable.
- 3Force = mass × acceleration (F = ma).
- 4Mass = force / acceleration (m = F/a).
- 5Acceleration = force / mass (a = F/m).
About Force Calculator (F=ma)
Calculate force, mass, or acceleration using Newton's Second Law (F=ma). Enter any two values to find the third.
Frequently Asked Questions
What is a Newton?
A Newton (N) is the SI unit of force. It's the force needed to accelerate 1 kilogram at 1 meter per second squared. On Earth, 1 kg exerts about 9.81 N of gravitational force.
What is Newton's Second Law?
Newton's Second Law states that the net force on an object equals its mass times its acceleration (F = ma). It explains how forces cause changes in motion.
How does gravity fit in?
Weight is a force: W = mg, where g = 9.81 m/s² on Earth. A 70 kg person has a weight of about 686.7 N. On the Moon (g = 1.62 m/s²), the same person would weigh only 113.4 N.