Sin Calculator
Calculate the sine of an angle in degrees or radians. This page also shows the angle converted to radians and indicates common known-angle cases.
Sin Calculator tool
Computes:
sin(θ)
| Metric | Value |
|---|
Privacy: calculations run locally in your browser. No inputs are stored or transmitted.
This calculator converts the angle to radians internally when necessary, then evaluates the sine function.
Common values:
sin(0°) = 0,
sin(30°) = 0.5,
sin(45°) ≈ 0.7071,
sin(90°) = 1
Examples
- 30° → sin = 0.5
- 45° → sin ≈ 0.7071
- π/2 rad → sin = 1
FAQ
- What does this sin calculator compute?
It computes the sine of an angle in either degrees or radians.
- Can I switch between degrees and radians?
Yes. The calculator supports both degree mode and radian mode.
- What is sine?
In right-triangle trigonometry, sine is opposite divided by hypotenuse. More generally, it is the y-coordinate on the unit circle.
- Why do some results look like 0 when they should be tiny?
Very small floating-point values are rounded to 0 for readability.
- Are calculations stored?
No. Everything runs locally in your browser.