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Find the force exerted by a surface on an object by just providing a few required inputs to the normal force calculator.

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Try this **normal force calculator** to determine the amount of force a surface applies on an object to prevent it from falling.
**What Is Normal Force?**

The normal force is exerted on an object by a surface. For instance, you have a glass and you put it on a table, and the gravitational force pulls the glass downward. To stop the glass from going down the table exerts a force on it.
This force that is exerted by the table is known as the normal force.
It is denoted by \(F_N\) or N and the unit that is used for the normal force is Newton. This normal force follows the principle of Newton's Third Law of Motion.
**How To Calculate Normal Force On Incline & Flat Surfaces?**

Normal force acts perpendicular to the surface and it changes on whether the object is on an incline or a flat surface.
**Normal Force Formula:**

The formula that is used for knowing the normal force on a thing that is placed on a horizontal surface is as follows:
**\(Normal\ Force\ =\ F_N = m.g\)**
Where
**\(Normal\ Force\ =\ F_N = m.g.cos(a)\)**
Where
**\(Normal\ Force\ =\ F_N = m.g - F.sin(x)\)**
Where
**\(Normal\ Force\ =\ F_N = m.g + F.sin(x)\)**
**Normal Force Examples:**

**Solution:**
Mass = m = 1 Kg
Angle = θ = 45°
\(F_N = m * g * cos(α)\)
Substituting the values in the normal force formula
\(\text{Normal Force} = F_{N}\)
= 1 * 9.8 * cos (45°)
= 6.92N
**Solution:**
Given that:
F = 200 N
m = 20 kg
g = 9.8 ms^-2
θ = 30°
Using the formula we get,
\(Normal\ Force\ =\ F_N = mg + Fsin θ\)
\(Normal\ Force\ =\ F_N = 20 (9.8) + 200* sin (30°)\)
\(F_N = 196 + 200 (1/2)\)
\(F_N = 196 + 100\)
\(F_N = 296 N\)

- m is representative of the mass of an object
- g is the gravitational acceleration

- a is the surface inclination angle

- F is the external force that acts on the object
- x is the angle between the outward force and the surface

**Let's suppose an object is placed on a table if the mass of the object is 1 kg. The Angle of inclination is 45°, so how to find normal force?**

**Suppose An object of mass of 10 kg is sliding down with a force of 200 N from a slant surface at an angle of 30°. Calculate the normal force being exerted on it.**

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