In geometry, the circumference (from latin circumferēns 'carrying around, circling') is the perimeter of a circle or ellipse The circumference is the arc length of the circle, as if it were opened up and straightened out to a line segment Use this calculator to easily calculate the circumference of a circle, given its radius in any metric Mm, cm, meters, km, inches, feet, yards, miles, etc If you know the diameter, first divide it by two to get the radius. Keep reading for everything you need to know about how to figure out the circumference of a circle using either the diameter or the radius
We've even got a circumference calculator to make things easy Use the formula c = πd to find the circumference if you know the diameter. The circumference of a circle is the distance around the boundary of the circle It is the same as calculating the perimeter of any polygon such as triangle, square, and rectangle. This calculator computes the values of typical circle parameters such as radius, diameter, circumference, and area, using various common units of measurement. The meaning of circumference is the perimeter of a circle
You sometimes see the word 'circumference' to mean the curved line that goes around the circle Other times it means the length of that line, as in the circumference is 2.11cm. The perimeter of a circle is called the circumference and is the linear distance around the edge of a circle The circumference of a circle is proportional to its diameter, d, and its radius, r, and relates to the famous mathematical constant, pi (π). The circumference of a circle is the edge or rim of a circle itself It is the equivalent of 'perimeter' for a circle
The glowing part in the circle above is the circumference.
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