In geometry, a diameter of a circle is any straight line segment that passes through the centre of the circle and whose endpoints lie on the circle. It can also be defined as the longest chord of the circle.

Jul 23, 2025 · To calculate the diameter of a circle we use the formula D = 2r. The diameter of any circle is the longest chord of the circle, that passes through the centre of the circle.

Diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints lie on the circumference of a circle. Learn how to find the diameter of a circle using radius, …

Oct 22, 2025 · From clear definitions and real-life examples to FAQs and a quick quiz, explore everything you need to know about diameter in this guide.

If you're wondering how to calculate the diameter of a circle, this diameter of a circle calculator is a perfect choice. You will need either the radius, the circumference, or the area of a given circle for the …

Apr 15, 2025 · The diameter of a circle is the distance straight across the circle from one side to the other at its center. Depending on what other information you have about the circle, there are a few …

The meaning of DIAMETER is a chord passing through the center of a figure or body. How to use diameter in a sentence.

Aug 3, 2023 · The diameter of a circle is the line segment that passes through the center of the circle and has its two endpoints on the circle. It is the longest distance from one end of the circle to the …

Aug 1, 2025 · Use this circle calculator to find the area, circumference, radius or diameter of a circle. Given any one variable A, C, r or d of a circle you can calculate the other three unknowns.

DIAMETER definition: 1. (the length of) a straight line that reaches from one point on the edge of a round shape or…. Learn more.