Calculate the sine of an angle in degrees or radians.
Last updated: June 2026 | By Patchworkr Team
The sine of an angle is the ratio of the opposite side to the hypotenuse in a right triangle.
sin(30 degrees) = 0.5.
Yes. Choose radians mode and enter the angle directly.
Sine values always lie between -1 and 1.
Yes. Any finite numeric angle is accepted.
The calculator shows an error instead of a misleading value.
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