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# JavaScript - calculate sin in degrees

7
points

In this article, we would like to show you a simple example of how to __calculate sin in degrees__ in __JavaScript__.

## Practical example

In order to use this example we just need to change the value of `deg`

variable to some other value (in degrees).

```
// ONLINE-RUNNER:browser;
function calculateSin(deg) {
var radians = (Math.PI / 180) * deg;
return Math.sin(radians);
}
var deg = 30;
var y = calculateSin(deg);
// sin(30 deg) = 0.49999999999999994
console.log('sin(' + deg + ' deg) = ' + y);
```

Output:

`sin(30 deg) = 0.49999999999999994`

We can change the value of `deg`

.

Example of common calculations:

```
sin(0 deg) = 0
sin(15 deg) = 0.25881904510252074
sin(30 deg) = 0.49999999999999994
sin(45 deg) = 0.7071067811865475
sin(60 deg) = 0.8660254037844386
sin(90 deg) = 1
```

I've prepared a similar post but for calculation cos in degrees: