Circle Equation Calculator

Radius and Center
and r =
Diameter Points
A = (,)
B = (,)
Circle Equation

How does the Circle Equation Calculator work?

This calculates the standard equation of a circle and general equation of a circle from the following given items:
* A center (h,k) and a radius r
* A diameter A(a1,a2) and B(b1,b2)
This also allows you to enter a standard or general form equation so that the center (h,k) and radius r can be determined.
This calculator has 8 inputs.

What 1 formula is used for the Circle Equation Calculator?

  1. (x - h)2 + (y - k)2 = r2 where (h,k) is the center of the circle and r = radius.

For more math formulas, check out our Formula Dossier

What 8 concepts are covered in the Circle Equation Calculator?

the set of all points in the plane that are a fixed distance from a fixed point
circle equation
An equation used to graph a circle
distance from two endpoints of a circle through the center
d = 2r
a statement declaring two mathematical expressions are equal
the middle point of a line segment. It is equidistant from both endpoints. It bisects the segment.
On a two digit coordinate plane, the point (0, 0), where the x-axis and y-axis cross.
Distance from the center of a circle to the edge

Example calculations for the Circle Equation Calculator

  1. (1,1)(2,4)
  2. (1,4) and (5,6)
  3. (h,k) = (2,- 4) and r = 5
  4. (x - 2)^2 + (y + 5)^2 = 81

Circle Equation Calculator Video