Quadrants to Radians calculator

Quadrants

A quarter circle sector is equal to 90°.

Source: Wikipedia

Radians

A radian is a unit of angular measure. A turn in a full circle has an angle of 2π radians.

Source: Wikipedia

Quadrants to Radians Conversion Table

Below you can generate and download as CSV, Excel, PDF or print the Quadrants to Radians conversion table based on your needs.

Selected rounding: none (You can change it above in the dropdown)

• Quadrant (90°)

  A circular sector or circle sector (symbol: ⌔), is the portion of a disk enclosed by two radii and an arc, where the smaller area is known as the minor sector and the larger being the major sector. In the diagram, θ is the central angle in radians, r the radius of the circle, and L is the arc length of the minor sector. A sector with the central angle of 180° is called a half-disk and is bounded by a diameter and a semicircle. Sectors with other central angles are sometimes given special names, these include quadrants (90°), sextants (60°) and octants (45°), which come from the sector being one 4th or 6th or 8th part of a full circle, respectively.

• Radian (57.295779513°)

  The radian (SI symbol rad) is the SI unit for measuring angles, and is the standard unit of angular measure used in many areas of mathematics. The length of an arc of a unit circle is numerically equal to the measurement in radians of the angle that it subtends; one radian is just under 57.3 degrees. The unit was formerly an SI supplementary unit, but this category was abolished in 1995 and the radian is now considered an SI derived unit.