One newton is the force needed to accelerate a 1 kg mass by 1 m/s². It is the SI unit of force.

Does this calculator handle weight?

Yes. Weight is the force of gravity on an object: W = m * g, where g is approximately 9.81 m/s² on Earth.

What if multiple forces act on an object?

The net force is the vector sum of all individual forces. This net force determines the acceleration via F_net = m * a.

Free Force Calculator

Calculate force from mass and acceleration using Newton's second law F = m * a.

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Mass

Acceleration

m/s²

Force

98.1000 N

Force vs Mass

View formula & how it works →

Newton's Second Law of Motion

Force equals the product of mass and acceleration.

Formula

F = m * a

The SI unit of force is the newton (N), equivalent to 1 kg * m/s².

Example Calculation

Find the force on a 10 kg object accelerating at 9.81 m/s².

01F = m * a
02F = 10 * 9.81
03F = 98.1 N

Frequently Asked Questions

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Understanding Newton's Laws of Motion

A comprehensive guide to Newton's three laws of motion. Learn about inertia, force and acceleration, action-reaction pairs, and how these principles govern everyday physics.

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