Diameter of a Circle Calculator
MathFind the diameter of a circle from its radius, along with its circumference and area.
Diameter
The distance across the circle through its center
Circumference
62.8319
The distance around the circle
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 is the formula for diameter?
The diameter of a circle equals twice its radius, written as d = 2r.
What is the diameter of a circle with a 10 unit radius?
A circle with a radius of 10 has a diameter of 20.
How is diameter related to circumference?
The circumference equals pi times the diameter, so a larger diameter always produces a proportionally larger circumference.
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