Circle Calculator
MathFind the circumference, diameter, and area of a circle from its radius.
Circumference
The distance around the circle
Diameter
20.0000
The distance across the circle through its center
Area
314.1593
The space enclosed by the circle
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Odeh Ahwal0people find this calculator helpful
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Calculator Stats
Creators
Odeh Ahwal0people find this calculator helpful
Views
Helpful
Saved
Embeds
Math calculators
Frequently Asked Questions
What three measurements define a circle?
A circle is fully described by its radius, diameter, and the resulting circumference and area, all of which are related through pi.
What are the circumference, diameter, and area of a circle with a 10 unit radius?
A circle with a radius of 10 has a circumference of about 62.83, a diameter of 20, and an area of about 314.16 square units.
What is pi and why does it appear in every circle formula?
Pi is the constant ratio of a circle circumference to its diameter, approximately 3.14159, and it appears in every circle formula because that ratio is the same for every circle regardless of size.
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