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Force Calculator
Use Newton’s second law, F = m × a, to solve force, mass or acceleration. Or add signed forces along one line to see the net force, resulting acceleration and a simple force diagram.
How do you calculate force?
Newton’s second law is F = m × a: multiply mass in kilograms by acceleration in metres per second squared to get force in newtons. For example, 2 kg × 3 m/s² = 6 N. For several forces along the same line, add them with their direction signs first.
Frequently asked questions
How do you calculate force?
Newton’s second law is F = m × a: multiply mass in kilograms by acceleration in metres per second squared to get force in newtons. For example, 2 kg × 3 m/s² = 6 N. For several forces along the same line, add them with their direction signs first.
Are my values uploaded?
No. The calculation runs in this browser; values are not uploaded or saved.
What is Newton’s second law?
It states that the net force on an object equals its mass multiplied by its acceleration: F = m × a.
What is the unit of force?
The SI unit is the newton (N). One newton gives a 1 kg mass an acceleration of 1 m/s².
How do I add forces in opposite directions?
Choose one direction as positive and enter forces in the other direction as negative. Add the signed values to get net force. This calculator handles collinear forces only.