The `<angle>` data type consists of a {{cssxref("&lt;number&gt;")}} followed by one of the units listed below. As with all dimensions, there is no space between the unit literal and the number. The angle unit is optional after the number `0`.

Optionally, it may be preceded by a single `+` or `-` sign. Positive numbers represent clockwise angles, while negative numbers represent counterclockwise angles. For static properties of a given unit, any angle can be represented by various equivalent values. For example, `90deg` equals `-270deg`, and `1turn` equals `4turn`. For dynamic properties, like when applying an {{cssxref("animation")}} or {{cssxref("transition")}}, the effect will nevertheless be different.

### Units

- `deg`

- : Represents an angle in [degrees](https://en.wikipedia.org/wiki/Degree_%28angle%29). One full circle is `360deg`. Examples: `0deg`, `90deg`, `14.23deg`.

- `grad`

- : Represents an angle in [gradians](https://en.wikipedia.org/wiki/Gradian). One full circle is `400grad`. Examples: `0grad`, `100grad`, `38.8grad`.

- `rad`

- : Represents an angle in [radians](https://en.wikipedia.org/wiki/Radian). One full circle is 2π radians which approximates to `6.2832rad`. `1rad` is 180/π degrees. Examples: `0rad`, `1.0708rad`, `6.2832rad`.

- `turn`

- : Represents an angle in a number of turns. One full circle is `1turn`. Examples: `0turn`, `0.25turn`, `1.2turn`.

### Setting a clockwise right angle

<table class="standard-table">

<tbody>

<tr>

<td><img class="default internal" src="angle90.png" alt="A diagram showing a clockwise 90-degree rotation along a circle by moving from the topmost point to the rightmost point." /></td>

<td><code>90deg = 100grad = 0.25turn ≈ 1.5708rad</code></td>

</tr>

</tbody>

</table>

### Setting a flat angle

<table class="standard-table">

<tbody>

<tr>

<td><img class="default internal" src="angle180.png" alt="A diagram showing a clockwise 180-degree rotation along a circle by moving from the topmost point to the bottommost point." /></td>

<td><code>180deg = 200grad = 0.5turn ≈ 3.1416rad</code></td>

</tr>

</tbody>

</table>

### Setting a counterclockwise right angle

<table class="standard-table">

<tbody>

<tr>

<td><img class="default internal" src="angleminus90.png" alt="A diagram showing a counterclockwise 90-degree rotation along a circle by moving from the topmost point to the leftmost point." /></td>

<td><code>-90deg = -100grad = -0.25turn ≈ -1.5708rad</code></td>

</tr>

</tbody>

</table>

### Setting a null angle

<table class="standard-table">

<tbody>

<tr>

<td><img class="default internal" src="angle0.png" alt="A diagram showing a 0-degree rotation. There is no movement." /></td>

<td><code>0 = 0deg = 0grad = 0turn = 0rad</code></td>

</tr>

</tbody>

</table>

{{Specifications}}

{{Compat}}

- [CSS data types](/en-US/docs/Web/CSS/CSS_Types)

- The [`<gradient>`](/en-US/docs/Web/CSS/gradient) type

- CSS rotation transforms: [`rotate()`](/en-US/docs/Web/CSS/transform-function/rotate), [`rotate3d()`](/en-US/docs/Web/CSS/transform-function/rotate3d), [`rotateX()`](/en-US/docs/Web/CSS/transform-function/rotateX), [`rotateY()`](/en-US/docs/Web/CSS/transform-function/rotateY), and [`rotateZ()`](/en-US/docs/Web/CSS/transform-function/rotateZ)

- [CSS transforms](/en-US/docs/Web/CSS/CSS_transforms)

- [Using CSS transforms](/en-US/docs/Web/CSS/CSS_transforms/Using_CSS_transforms)

- [Using CSS gradients](/en-US/docs/Web/CSS/CSS_images/Using_CSS_gradients)