Apothem Calculator


The apothem is a line segment from center point of side of a regular polygon to the midpoint of the regular polygon.
Apothem of a Regular Polygon

Note: The irregular polygons does not contain apothem or center. Hence, apothem can be calculated only for the regular polygons.

Formula to calculate apothem of a regular polygon when we know the length of any side of a polygon:

Apothem of a Regular Polygon Formula

where,
s = Length of any side of a polygon
n = Number of sides of a polygon
tan = Tan function calculated in degrees

Alternatively, if we know the circumradius (radius) of the polygon we can use this below formula to find the apothem.

Apothem Formula

where,
r = Radius of Polygon
n = Number of Sides of a Polygon
cos = Cos function calculated in degrees

Use our below online apothem calculator to find the apothem of the given polygon. Enter the given values and click calculate button to find the answer.


Use this apothem calculator when you know the length of any side of a polygon:
Length of any Side of Polygon:
Number of Sides of a Polygon:
Apothem of Polygon:


Use this apothem calculator when you know the radius of the polygon:
Radius of Polygon:
Number of Sides of a Polygon:
Apothem of Polygon:






Latest Calculator Release


Average Acceleration Calculator

Average acceleration is the object's change in speed for a specific given time period. ...


Free Fall Calculator

When an object falls into the ground due to planet's own gravitational force is known a...


Torque Calculator

Torque is nothing but a rotational force. In other words, the amount of force applied t...


Average Force Calculator

Average force can be explained as the amount of force exerted by the body moving at giv...


Angular Displacement Calculator

Angular displacement is the angle at which an object moves on a circular path. It is de...