Force Calculator

Force Calculator

Enter the parameters, and the calculator will determine the value of force, mass, or acceleration, with step-by-step calculations displayed.

Force Calculator

Net Force Calculator

Calculate

Acceleration (m)

ug ▾

Mass (a)

in_s2 ▾

Significant Figures

Get accurate calculations for mass, acceleration, and net force using this force calculator. It applies Newton’s second law of motion (F = ma) to determine the missing variable when any two are provided.

What Is Force?

"Force is a push or pull that acts on an object, causing it to move or change its motion." It occurs when two objects or entities interact.

SI Unit: Newton (N) or kg·m/s²
Quantity Type: Vector
Dimensional Formula: M¹L¹T⁻²

Force - Related Units:

Unit	Symbol
dyne	dyn
kilogram-force	kgf
newton	N
kilonewton	kN
kip	kip
pound-force	lbf
ounce-force	ozf
poundal	pdl

What Is Net Force?

Net force is the sum of all forces acting on a body. It represents the combined effect of all individual forces and produces the same acceleration as if all forces acted together. A net force calculator can determine the total force in both static and dynamic scenarios.

Formula for Force

Force is calculated as the product of mass and acceleration:

F = m × a

Where:

m = mass of the object
a = acceleration

Force is typically expressed in Newtons (N) or kg·m/s².

How to Calculate Force?

Example 1:

Find the force on a body with mass 4 kg and acceleration 5 m/s².

Solution:

F = m × a = 4 × 5 = 20 N

Example 2:

Find the net force on an object at rest with an applied force of 15 N and a gravitational force of 50 N.

Solution:

Net force: n = a + g = 15 + 50 = 65 N

Working of Force Calculator

The calculator determines the force acting on an object using Newton’s 2nd law:

Inputs:

Select the parameter to calculate (mass, acceleration, or force).
Enter known values with units.
Click Calculate.

Output:

Mass
Acceleration
Force

FAQs

What are the types of forces?

There are two main types: constant forces (unchanging magnitude) and non-constant forces (varying with time or position).

What is contact force?

Contact force requires physical interaction between objects, such as friction, tension, or normal force. The calculator can compute these forces if parameters are known.

Is weight a force?

Yes, weight is the gravitational force acting on a mass. Mass and weight differ: mass is an intrinsic property, while weight = m × g. For example, a person with mass 70 kg has a weight ≈ 686.5 N on Earth.

Reference

Wikipedia: Force, including Newtonian mechanics, pre-Newtonian concepts, special relativity, equilibrium, static and dynamic forces. Lumen Learning: Laws of Motion, inertia, and linear momentum.