sin(x) is the sine function, which gives the ratio of the length of the side opposite angle x to the length of the hypotenuse in a right triangle. It ranges from -1 to 1.

Do I use degrees or radians?

You can use either. Degrees are more intuitive (0° to 360°), while radians are standard in calculus and advanced math (0 to 2π). Our calculator supports both modes.

What are common sine values?

Common values include: sin(0°) = 0, sin(30°) = 0.5, sin(45°) = √2/2 ≈ 0.707, sin(60°) = √3/2 ≈ 0.866, sin(90°) = 1.

📐 Sine Calculator (sin x)

Instantly compute sin(x) in degrees or radians. Includes graph insights, common values, and quick examples.

Sine Calculator

Angle

sin(x) =

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The sine function is one of the fundamental trigonometric functions. It represents the ratio of the length of the side opposite an angle to the length of the hypotenuse in a right triangle. Our sine calculator supports both degrees and radians, provides accurate results, and includes helpful examples.

Quick Examples

Common sine values you might encounter.

sin(0°) = 0

The sine of 0 degrees is 0.

sin(30°) = 0.5

The sine of 30 degrees is 1/2.

sin(90°) = 1

The sine of 90 degrees is 1.

sin(π/2) = 1

The sine of π/2 radians (90 degrees) is 1.

Use Cases

Common applications of the sine function.

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Triangle Solving

Finding opposite side length (SOHCAHTOA)
Calculating angles from side ratios
Solving right triangle problems

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Physics & Waves

Oscillation and wave problems
Simple harmonic motion
AC circuit analysis

Frequently Asked Questions

Common questions about the sine function.

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